[Go] fix documentation of API authorization in README files (#15345)

align wording across generators

Author: tiffmaelite

modules/openapi-generator/src/main/resources/go/README.mustache

@@ -98,10 +98,9 @@ Class | Method | HTTP request | Description
 
 ## Documentation For Authorization
 
-{{^authMethods}} Endpoints do not require authorization.
-{{/authMethods}}{{#authMethods}}{{#last}} Authentication schemes defined for the API:{{/last}}{{/authMethods}}
+{{^authMethods}}Endpoints do not require authorization.{{/authMethods}}
+{{#hasAuthMethods}}Authentication schemes defined for the API:{{/hasAuthMethods}}
 {{#authMethods}}
-
 ### {{{name}}}
 
 {{#isApiKey}}

samples/client/petstore/go/go-petstore/README.md

@@ -172,7 +172,7 @@ Class | Method | HTTP request | Description
 ## Documentation For Authorization
 
 
-
+Authentication schemes defined for the API:
 ### petstore_auth
 
 
@@ -202,7 +202,6 @@ auth := context.WithValue(oauth2.NoContext, sw.ContextOAuth2, tokenSource)
 r, err := client.Service.Operation(auth, args)
 ```
 
-
 ### api_key
 
 - **Type**: API key
@@ -211,7 +210,6 @@ r, err := client.Service.Operation(auth, args)
 
 Note, each API key must be added to a map of `map[string]APIKey` where the key is: api_key and passed in as the auth context for each request.
 
-
 ### api_key_query
 
 - **Type**: API key
@@ -220,7 +218,6 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Note, each API key must be added to a map of `map[string]APIKey` where the key is: api_key_query and passed in as the auth context for each request.
 
-
 ### http_basic_test
 
 - **Type**: HTTP basic authentication

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

@@ -90,7 +90,7 @@ Class | Method | HTTP request | Description
 ## Documentation For Authorization
 
 
-
+Authentication schemes defined for the API:
 ### api_key
 
 - **Type**: API key
@@ -99,7 +99,6 @@ Class | Method | HTTP request | Description
 
 Note, each API key must be added to a map of `map[string]APIKey` where the key is: X-Api-Key and passed in as the auth context for each request.
 
-
 ### api_key_query
 
 - **Type**: API key

samples/openapi3/client/petstore/go/go-petstore/README.md

@@ -192,7 +192,7 @@ Class | Method | HTTP request | Description
 ## Documentation For Authorization
 
 
-
+Authentication schemes defined for the API:
 ### petstore_auth
 
 
@@ -222,7 +222,6 @@ auth := context.WithValue(oauth2.NoContext, sw.ContextOAuth2, tokenSource)
 r, err := client.Service.Operation(auth, args)
 ```
 
-
 ### api_key
 
 - **Type**: API key
@@ -231,7 +230,6 @@ r, err := client.Service.Operation(auth, args)
 
 Note, each API key must be added to a map of `map[string]APIKey` where the key is: api_key and passed in as the auth context for each request.
 
-
 ### api_key_query
 
 - **Type**: API key
@@ -240,7 +238,6 @@ Note, each API key must be added to a map of `map[string]APIKey` where the key i
 
 Note, each API key must be added to a map of `map[string]APIKey` where the key is: api_key_query and passed in as the auth context for each request.
 
-
 ### http_basic_test
 
 - **Type**: HTTP basic authentication
@@ -255,7 +252,6 @@ auth := context.WithValue(context.Background(), sw.ContextBasicAuth, sw.BasicAut
 r, err := client.Service.Operation(auth, args)
 ```
 
-
 ### bearer_test
 
 - **Type**: HTTP Bearer token authentication
@@ -267,7 +263,6 @@ auth := context.WithValue(context.Background(), sw.ContextAccessToken, "BEARER_T
 r, err := client.Service.Operation(auth, args)
 ```
 
-
 ### http_signature_test
 
 - **Type**: HTTP signature authentication