docs: changes gitter link to Discord

- changes in website footer also

README.md

@@ -205,7 +205,7 @@ If you have any issue you can try the following options, do no desist to ask or
 * [Most common questions](https://github.com/verdaccio/verdaccio/issues?utf8=%E2%9C%93&q=is%3Aissue%20label%3Aquestion%20)
 * [Reporting a bug](https://github.com/verdaccio/verdaccio/blob/master/CONTRIBUTING.md#reporting-a-bug)
 * [Running discussions](https://github.com/verdaccio/verdaccio/issues?q=is%3Aissue+is%3Aopen+label%3Adiscuss)
-* [Chat Room](https://gitter.im/verdaccio/)
+* [Chat Room](http://chat.verdaccio.org/)
 * [Logos](https://github.com/verdaccio/verdaccio/tree/master/assets)
 
 

docs/contributing.md

@@ -9,8 +9,7 @@ First of all 👏👏 thanks for visiting this page, for us means you are willin
 
 If you are willing for asking, we use two channels for discussions:
 
-* [Public Gitter channel](https://gitter.im/verdaccio/)
+* [Public Discord channel](http://chat.verdaccio.org/)
-* [Contributors Slack channel](https://verdaccio-npm.slack.com) (unfortunately only by email invitation, you might ask in **Gitter** to be included)
 
 ## Getting started
 

website/core/Footer.js

@@ -62,7 +62,7 @@ class Footer extends React.Component {
               href="https://stackoverflow.com/search?q=verdaccio" target="_blank">
               Stack Overflow
             </a>
-            <a href="https://gitter.im/verdaccio" target="_blank">Project Chat</a>
+            <a href="http://chat.verdaccio.org" target="_blank">Project Chat</a>
             <a href="https://twitter.com/verdaccio_npm" target="_blank">
               <img
                 alt="Follow Verdaccio on Twitter"