suggest versions of serverless it supports

Author: JaredCE

README.md

@@ -18,7 +18,7 @@ Originally based off of: https://github.com/temando/serverless-openapi-documenta
 
 ## Install
 
-This plugin works for Serverless 2.x and up and only supports node.js 14 and up.
+This plugin works for Serverless (2.x, 3.x and 4.x) and only supports node.js 14 and up.
 
 To add this plugin to your package.json:
 

package.json

@@ -9,12 +9,16 @@
     "Serverless 2",
     "serverless3",
     "Serverless 3",
+    "Serverless4",
+    "Serverless 4",
     "serverless framework",
     "serverless framework plugin",
     "serverless plugin",
+    "swagger",
     "openAPI",
     "openAPIv3",
     "openAPI3",
+    "Postman",
     "PostmanCollections",
     "Postman-Collections",
     "Postman Collections",