Update README.md

issue-:graphql#3979

README.md

@@ -108,6 +108,12 @@ graphql({ schema, source }).then((result) => {
 
 **Note**: Please don't forget to set `NODE_ENV=production` if you are running a production server. It will disable some checks that can be useful during development but will significantly improve performance.
 
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+### NEW graphql API Documentation  -: 
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+https://graphql-js.org/
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 ### Want to ride the bleeding edge?
 
 The `npm` branch in this repository is automatically maintained to be the last