Moving chat to Slack (#58)

* Moving chat to Slack

* Update README.md

Co-authored-by: Robert Pająk <[email protected]>

Co-authored-by: Robert Pająk <[email protected]>

Author: pjanotti

README.md

@@ -1,6 +1,6 @@
 # opentelemetry-dotnet-instrumentation
-[![Gitter
-chat](https://badges.gitter.im/open-telemetry/opentelemetry-dotnet.svg)](https://gitter.im/open-telemetry/opentelemetry-dotnet-auto-instr)
+
+[![Slack](https://img.shields.io/badge/slack-@cncf/otel--dotnet--auto--instr-brightgreen.svg?logo=slack)](https://cloud-native.slack.com/archives/C01NR1YLSE7)
 
 This project provides a .NET tracer that leverages the .NET profiling APIs to support .NET instrumentation and auto-instrumentation without requiring code changes to an application.
 
@@ -24,7 +24,7 @@ Meetings take place via [Zoom video conference](https://zoom.us/j/8287234601). T
 Meeting notes are available as a public [Google
 doc](https://docs.google.com/document/d/1XedN2D8_PH4YLej-maT8sp4RKogfuhFpccRi3QpUcoI/edit?usp=sharing).
 For edit access, get in touch on
-[Gitter](https://gitter.im/open-telemetry/opentelemetry-dotnet-auto-instr).
+[Slack](https://cloud-native.slack.com/archives/C01NR1YLSE7).
 
 ## Community Roles
 

docs/CONTRIBUTING.md

@@ -4,7 +4,7 @@
   <strong>
     <a href="https://github.com/open-telemetry/community#net-auto-instrumentation">Getting Involved<a/>
     &nbsp;&nbsp;&bull;&nbsp;&nbsp;
-    <a href="https://gitter.im/open-telemetry/opentelemetry-dotnet-auto-instr">Getting In Touch<a/>
+    <a href="https://cloud-native.slack.com/archives/C01NR1YLSE7">Getting In Touch<a/>
   </strong>
 </p>
 
@@ -21,7 +21,7 @@ repo for information on this and other SIGs.
 See the [public meeting notes](https://docs.google.com/document/d/1XedN2D8_PH4YLej-maT8sp4RKogfuhFpccRi3QpUcoI/edit)
 for a summary description of past meetings.
 Join the meeting or get in touch on
-[Gitter](https://gitter.im/open-telemetry/opentelemetry-dotnet-auto-instr).
+[Slack](https://cloud-native.slack.com/archives/C01NR1YLSE7).
 
 Even though, anybody can contribute, there are benefits of being a member of
 our community. See to the [community membership