use graphing-library-docs repo instead of documentation

Author: archmoj

README.md

@@ -115,7 +115,7 @@ Have a bug or a feature request? Please first read the [issues guidelines](https
 
 Official plotly.js documentation is hosted on [plotly.com/javascript](https://plotly.com/javascript).
 
-These pages are generated by the Plotly [documentation repo](https://github.com/plotly/documentation/tree/gh-pages) built with [Jekyll](https://jekyllrb.com/) and publicly hosted on GitHub Pages.
+These pages are generated by the Plotly [graphing-library-docs repo](https://github.com/plotly/graphing-library-docs) built with [Jekyll](https://jekyllrb.com/) and publicly hosted on GitHub Pages.
 For more info about contributing to Plotly documentation, please read through [contributing guidelines](https://github.com/plotly/documentation/blob/source/Contributing.md).
 
 You can also suggest new documentation examples by submitting a [Codepen](https://codepen.io/tag/plotly/) on community.plot.com with tag [`plotly-js`](https://community.plotly.com/c/api/plotly-js).