adding instructions in comments

order-redirect/go/action/action.go

diff --git a/order-redirect/go/action/action.go b/order-redirect/go/action/action.go
index e60cefd..2680666 100644
--- a/order-redirect/go/action/action.go
+++ b/order-redirect/go/action/action.go
@@ -1,5 +1,11 @@
 /**
-Example Action feed for Google Order Redirect.
+Example Action feed for Google Order Redirect. Create "generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+	go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+	protoc --proto_path=../proto/ --go_out=generated ../proto/action.proto
+
+See https://protobuf.dev/reference/go/go-generated/ for more details.
 **/
 
 package main

order-redirect/go/entity/entity.go

diff --git a/order-redirect/go/entity/entity.go b/order-redirect/go/entity/entity.go
index 035394b..4e20c79 100644
--- a/order-redirect/go/entity/entity.go
+++ b/order-redirect/go/entity/entity.go
@@ -1,5 +1,11 @@
 /**
-Example Entity feed for Google Order Redirect.
+Example Entity feed for Google Order Redirect. Create "generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+	go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+	protoc --proto_path=../proto/ --go_out=generated ../proto/entity.proto
+
+See https://protobuf.dev/reference/go/go-generated/ for more details.
 **/
 
 package main

order-redirect/java/src/main/java/com/example/order_redirect/ActionFeedExample.java

diff --git a/order-redirect/java/src/main/java/com/example/order_redirect/ActionFeedExample.java b/order-redirect/java/src/main/java/com/example/order_redirect/ActionFeedExample.java
index ee1e697..b1d6647 100644
--- a/order-redirect/java/src/main/java/com/example/order_redirect/ActionFeedExample.java
+++ b/order-redirect/java/src/main/java/com/example/order_redirect/ActionFeedExample.java
@@ -1,5 +1,10 @@
 /**
-Example Action feed for Google Order Redirect.
+Example Action feed for Google Order Redirect. Create "src/main/generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+  protoc --java_out=src/main/java/generated --proto_path=../proto/ ../proto/action.proto
+
+See https://protobuf.dev/reference/java/java-generated/ for more details.
 **/
 
 package com.example.order_redirect;

order-redirect/java/src/main/java/com/example/order_redirect/EntityFeedExample.java

diff --git a/order-redirect/java/src/main/java/com/example/order_redirect/EntityFeedExample.java b/order-redirect/java/src/main/java/com/example/order_redirect/EntityFeedExample.java
index 085b4b3..66ae374 100644
--- a/order-redirect/java/src/main/java/com/example/order_redirect/EntityFeedExample.java
+++ b/order-redirect/java/src/main/java/com/example/order_redirect/EntityFeedExample.java
@@ -1,5 +1,10 @@
 /**
-Example Entity feed for Google Order Redirect.
+Example Entity feed for Google Order Redirect. Create "src/main/generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+  protoc --java_out=src/main/java/generated --proto_path=../proto ../proto/entity.proto
+
+See https://protobuf.dev/reference/java/java-generated/ for more details.
 **/
 
 package com.example.order_redirect;

order-redirect/php/ActionFeedExample.php

diff --git a/order-redirect/php/ActionFeedExample.php b/order-redirect/php/ActionFeedExample.php
index a0d5fdf..09ebf61 100644
--- a/order-redirect/php/ActionFeedExample.php
+++ b/order-redirect/php/ActionFeedExample.php
@@ -1,9 +1,11 @@
 <?php
 /*
 Example Action feed for Google Order Redirect. Create build/gen directory for generated proto classes.
-Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
 Generate proto classes with:
-protoc --php_out=./build/gen --proto_path=../proto/ ../proto/*.proto ../proto/google/type/*.proto
+    protoc --php_out=./build/gen --proto_path=../proto/ ../proto/action.proto
+
+See https://protobuf.dev/reference/php/php-generated/ for more details.
 */
 
 require dirname(__FILE__).'/vendor/autoload.php';

order-redirect/php/EntityFeedExample.php

diff --git a/order-redirect/php/EntityFeedExample.php b/order-redirect/php/EntityFeedExample.php
index dc32d4b..905c81d 100644
--- a/order-redirect/php/EntityFeedExample.php
+++ b/order-redirect/php/EntityFeedExample.php
@@ -3,7 +3,9 @@
 Example Entity feed for Google Order Redirect. Create build/gen directory for generated proto classes.
 Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases
 Generate proto classes with:
-protoc --php_out=./build/gen --proto_path=../proto/ ../proto/*.proto ../proto/google/type/*.proto
+    protoc --php_out=./build/gen --proto_path=../proto/ ../proto/entity.proto
+
+See https://protobuf.dev/reference/php/php-generated/ for more details.
 */
 
 require dirname(__FILE__).'/vendor/autoload.php';

order-redirect/python/action_feed_example.py

diff --git a/order-redirect/python/action_feed_example.py b/order-redirect/python/action_feed_example.py
index 8e3027e..b57ea8e 100644
--- a/order-redirect/python/action_feed_example.py
+++ b/order-redirect/python/action_feed_example.py
@@ -1,5 +1,10 @@
 '''
-Example Action feed for Google Order Redirect.
+Example Action feed for Google Order Redirect. Create "generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases
+Generate proto classes with:
+    protoc --python_out=./generated --proto_path=../proto/ ../proto/action.proto
+
+See https://protobuf.dev/reference/python/python-generated/ for more details.
 '''
 
 import json

order-redirect/python/entity_feed_example.py

diff --git a/order-redirect/python/entity_feed_example.py b/order-redirect/python/entity_feed_example.py
index a67f775..53fc107 100644
--- a/order-redirect/python/entity_feed_example.py
+++ b/order-redirect/python/entity_feed_example.py
@@ -1,5 +1,10 @@
 '''
-Example Action feed for Google Order Redirect.
+Example Action feed for Google Order Redirect.Create "generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases
+Generate proto classes with:
+    protoc --python_out=./generated --proto_path=../proto/ ../proto/entity.proto
+
+See https://protobuf.dev/reference/python/python-generated/ for more details.
 '''
 
 import json

order-redirect/python/service_feed_example.py

diff --git a/order-redirect/python/service_feed_example.py b/order-redirect/python/service_feed_example.py
index 32f92d6..b344174 100644
--- a/order-redirect/python/service_feed_example.py
+++ b/order-redirect/python/service_feed_example.py
@@ -1,5 +1,10 @@
 '''
-Example Service feed for Google Order Redirect.
+Example Service feed for Google Order Redirect. Create "generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases
+Generate proto classes with:
+    protoc --python_out=./generated --proto_path=../proto/ ../proto/action.proto ../proto/google/type/*.proto
+
+See https://protobuf.dev/reference/python/python-generated/ for more details.
 '''
 
 import json

order-redirect/typescript/src/action_feed_example.ts

diff --git a/order-redirect/typescript/src/action_feed_example.ts b/order-redirect/typescript/src/action_feed_example.ts
index 7526eaa..b738ba7 100644
--- a/order-redirect/typescript/src/action_feed_example.ts
+++ b/order-redirect/typescript/src/action_feed_example.ts
@@ -1,5 +1,9 @@
 /*
-Example Action feed for Google Order Redirect.
+Example Action feed for Google Order Redirect. Create "src/generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+    npm i ts-proto
+    protoc --plugin="./node_modules/.bin/protoc-gen-ts_proto" --ts_proto_opt=useOptionals=all --ts_proto_opt=snakeToCamel=false --ts_proto_opt=onlyTypes=true --ts_proto_out="./src/generated" ../proto/action.proto
 */
 
 import {

order-redirect/typescript/src/entity_feed_example.ts

diff --git a/order-redirect/typescript/src/entity_feed_example.ts b/order-redirect/typescript/src/entity_feed_example.ts
index 0c043a9..94146e9 100644
--- a/order-redirect/typescript/src/entity_feed_example.ts
+++ b/order-redirect/typescript/src/entity_feed_example.ts
@@ -1,5 +1,9 @@
 /*
-Example Entity feed for Google Order Redirect.
+Example Entity feed for Google Order Redirect.  Create "src/generated" directory for generated proto classes.
+Download lastest version of protoc from https://github.com/protocolbuffers/protobuf/releases.
+Generate proto classes with:
+    npm i ts-proto
+    protoc --plugin="./node_modules/.bin/protoc-gen-ts_proto" --ts_proto_opt=useOptionals=all --ts_proto_opt=snakeToCamel=false --ts_proto_opt=onlyTypes=true --ts_proto_out="./src/generated" ../proto/entity.proto
 */
 
 import {