[Ruby] fix documentation of API authorization in README files (#15353)

align wording across generators

modules/openapi-generator/src/main/resources/ruby-client/README.mustache

@@ -128,9 +128,10 @@ Class | Method | HTTP request | Description
 
 ## Documentation for Authorization
 
-{{^authMethods}} All endpoints do not require authorization.
-{{/authMethods}}{{#authMethods}}{{#last}} Authentication schemes defined for the API:{{/last}}{{/authMethods}}
-{{#authMethods}}### {{name}}
+{{^authMethods}}Endpoints do not require authorization.{{/authMethods}}
+{{#hasAuthMethods}}Authentication schemes defined for the API:{{/hasAuthMethods}}
+{{#authMethods}}
+### {{name}}
 
 {{#isApiKey}}
 

samples/client/petstore/ruby-autoload/README.md

@@ -173,6 +173,7 @@ Class | Method | HTTP request | Description
 ## Documentation for Authorization
 
 
+Authentication schemes defined for the API:
 ### petstore_auth
 
 

samples/client/petstore/ruby-faraday/README.md

@@ -173,6 +173,7 @@ Class | Method | HTTP request | Description
 ## Documentation for Authorization
 
 
+Authentication schemes defined for the API:
 ### petstore_auth
 
 

samples/client/petstore/ruby/README.md

@@ -173,6 +173,7 @@ Class | Method | HTTP request | Description
 ## Documentation for Authorization
 
 
+Authentication schemes defined for the API:
 ### petstore_auth
 
 

samples/openapi3/client/extensions/x-auth-id-alias/ruby-client/README.md

@@ -100,6 +100,7 @@ Class | Method | HTTP request | Description
 ## Documentation for Authorization
 
 
+Authentication schemes defined for the API:
 ### api_key
 
 

samples/openapi3/client/features/dynamic-servers/ruby/README.md

@@ -84,5 +84,5 @@ Class | Method | HTTP request | Description
 
 ## Documentation for Authorization
 
- All endpoints do not require authorization.
+Endpoints do not require authorization.
 

samples/openapi3/client/features/generate-alias-as-model/ruby-client/README.md

@@ -89,5 +89,5 @@ Class | Method | HTTP request | Description
 
 ## Documentation for Authorization
 
- All endpoints do not require authorization.
+Endpoints do not require authorization.