Fix typos in test fields and comments (#1287)

Co-authored-by: Jamie Tanna <[email protected]>

README.md

@@ -619,7 +619,7 @@ which help you to use the various OpenAPI 3 Authentication mechanism.
         }
 
         // Example providing your own provider using an anonymous function wrapping in the
-        // InterceptoFn adapter. The behaviour between the InterceptorFn and the Interceptor interface
+        // InterceptorFn adapter. The behaviour between the InterceptorFn and the Interceptor interface
         // are the same as http.HandlerFunc and http.Handler.
         customProvider := func(req *http.Request, ctx context.Context) error {
             // Just log the request header, nothing else.

cmd/oapi-codegen/oapi-codegen.go

@@ -55,7 +55,7 @@ var (
 	flagExcludeSchemas      string
 	flagResponseTypeSuffix  string
 	flagAliasTypes          bool
-	flagInitalismOverrides  bool
+	flagInitialismOverrides bool
 )
 
 type configuration struct {
@@ -109,7 +109,7 @@ func main() {
 	flag.StringVar(&flagExcludeSchemas, "exclude-schemas", "", "A comma separated list of schemas which must be excluded from generation.")
 	flag.StringVar(&flagResponseTypeSuffix, "response-type-suffix", "", "The suffix used for responses types.")
 	flag.BoolVar(&flagAliasTypes, "alias-types", false, "Alias type declarations of possible.")
-	flag.BoolVar(&flagInitalismOverrides, "initialism-overrides", false, "Use initialism overrides.")
+	flag.BoolVar(&flagInitialismOverrides, "initialism-overrides", false, "Use initialism overrides.")
 
 	flag.Parse()
 
@@ -429,7 +429,7 @@ func updateConfigFromFlags(cfg *configuration) error {
 		cfg.OutputFile = flagOutputFile
 	}
 
-	cfg.OutputOptions.InitialismOverrides = flagInitalismOverrides
+	cfg.OutputOptions.InitialismOverrides = flagInitialismOverrides
 
 	return nil
 }

internal/test/components/components.yaml

@@ -321,7 +321,7 @@ components:
         - $ref: '#/components/schemas/OneOfVariant1'
         - $ref: '#/components/schemas/OneOfVariant2'
     OneOfObject9:
-      description: oneOf with fixed descriminator
+      description: oneOf with fixed discriminator
       type: object
       properties:
         type: