Replace links to Gitter channel with GitHub Discussions

Author: bkoelman

.github/CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # I don't want to read this whole thing I just have a question!!!
 
-> You can file an issue to ask a question, but you'll get faster results by using our official [Gitter channel](https://gitter.im/json-api-dotnet-core/Lobby) or [StackOverflow](https://stackoverflow.com/search?q=jsonapidotnetcore) where the community chimes in with helpful advice if you have questions.
+> You can file an issue to ask a question, but you'll get faster results by using [GitHub Discussions](https://github.com/json-api-dotnet/JsonApiDotNetCore/discussions) or [StackOverflow](https://stackoverflow.com/search?q=jsonapidotnetcore) where the community chimes in with helpful advice if you have questions.
 
 # How can I contribute?
 

.github/ISSUE_TEMPLATE/config.yml

@@ -6,8 +6,8 @@ contact_links:
 - name: Sponsor JsonApiDotNetCore
   url: https://github.com/sponsors/json-api-dotnet
   about: Help the continued development.
-- name: Ask on Gitter
-  url: https://gitter.im/json-api-dotnet-core/Lobby
+- name: Ask on GitHub Discussions
+  url: https://github.com/json-api-dotnet/JsonApiDotNetCore/discussions
   about: Get in touch with the whole community.
 - name: Ask on Stack Overflow
   url: https://stackoverflow.com/questions/tagged/json-api

README.md

@@ -6,7 +6,6 @@
 [![Coverage](https://codecov.io/gh/json-api-dotnet/JsonApiDotNetCore/branch/master/graph/badge.svg?token=pn036tWV8T)](https://codecov.io/gh/json-api-dotnet/JsonApiDotNetCore)
 [![NuGet](https://img.shields.io/nuget/v/JsonApiDotNetCore.svg)](https://www.nuget.org/packages/JsonApiDotNetCore/)
 [![GitHub License](https://img.shields.io/github/license/json-api-dotnet/JsonApiDotNetCore)](LICENSE)
-[![Chat](https://badges.gitter.im/json-api-dotnet-core/Lobby.svg)](https://gitter.im/json-api-dotnet-core/Lobby?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![FIRST-TIMERS](https://img.shields.io/badge/first--timers--only-friendly-blue.svg)](https://www.firsttimersonly.com/)
 
 A framework for building [JSON:API](https://jsonapi.org/) compliant REST APIs using ASP.NET Core and Entity Framework Core. Includes support for the [Atomic Operations](https://jsonapi.org/ext/atomic/) extension.

docs/home/index.html

@@ -323,7 +323,10 @@ <h2>Sponsors</h2>
           <div class="row justify-content-center">
             <div class="col-lg-8">
               <h4>Contact us</h4>
-              <p>If you find any bugs or have a feature request, please create an issue in the <a href="https://github.com/json-api-dotnet/JsonApiDotNetCore" target="_blank">GitHub repository</a>. For questions or just to socialize, everyone is welcome in our <a href="https://gitter.im/json-api-dotnet-core/Lobby" target="_blank">Gitter channel</a>!</p>
+              <p>
+                If you find any bugs or have a feature request, please create an issue in the <a href="https://github.com/json-api-dotnet/JsonApiDotNetCore" target="_blank">GitHub repository</a>.
+                For questions or just to socialize, everyone is welcome at our <a href="https://github.com/json-api-dotnet/JsonApiDotNetCore/discussions" target="_blank">GitHub Discussions</a>!
+              </p>
             </div>
           </div>
         </div>

docs/usage/faq.md

@@ -166,7 +166,7 @@ which produces SQL and uses [Dapper](https://github.com/DapperLib/Dapper) for da
 The best way to express your gratitude is by starring our repository.
 This increases our leverage when asking for bug fixes in dependent projects, such as the .NET runtime and Entity Framework Core.
 You can also [sponsor](https://github.com/sponsors/json-api-dotnet) our project.
-Of course, a simple thank-you message in our [Gitter channel](https://gitter.im/json-api-dotnet-core/Lobby) is appreciated too!
+Of course, a simple thank-you message on [GitHub Discussions](https://github.com/json-api-dotnet/JsonApiDotNetCore/discussions) is appreciated too!
 
 If you'd like to do more: try things out, ask questions, create GitHub bug reports or feature requests, or upvote existing issues that are important to you.
 We welcome PRs, but keep in mind: The worst thing in the world is opening a PR that gets rejected after you've put a lot of effort into it.