fixing Issue#1449: revise 405 Response Object description from 'Input Invalid' to 'Method Not Allowed'

Author: weimengxi

versions/3.0.2.md

@@ -903,7 +903,7 @@ This object MAY be extended with [Specification Extensions](#specificationExtens
       }
     },
     "405": {
-      "description": "Invalid input",
+      "description": "Method Not Allowed",
       "content": {
         "application/json": {},
         "application/xml": {}
@@ -953,7 +953,7 @@ responses:
       'application/json': {}
       'application/xml': {}
   '405':
-    description: Invalid input
+    description: Method Not Allowed
     content: 
       'application/json': {}
       'application/xml': {}