Update references from Discourse to Discussions. (getredash#5916)

.github/ISSUE_TEMPLATE/---bug_report.md

@@ -7,10 +7,10 @@ about: Report reproducible software issues so we can improve
 
 We use GitHub only for bug reports 🐛
 
-Anything else should be posted to https://discuss.redash.io 👫
+Anything else should be a discussion: https://github.com/getredash/redash/discussions/ 👫
 
-🚨For support, help & questions use https://discuss.redash.io/c/support
-💡For feature requests & ideas use https://discuss.redash.io/c/feature-requests
+🚨For support, help & questions use https://github.com/getredash/redash/discussions/categories/q-a
+💡For feature requests & ideas use https://github.com/getredash/redash/discussions/categories/ideas
 
 **Found a security vulnerability?** Please email [email protected] to report any security vulnerabilities. We will acknowledge receipt of your vulnerability and strive to send you regular updates about our progress. If you're curious about the status of your disclosure please feel free to email us again. If you want to encrypt your disclosure email, you can use this PGP key.
 

.github/ISSUE_TEMPLATE/--anything_else.md

@@ -1,17 +1,17 @@
 ---
 name: "\U0001F4A1Anything else"
-about: "For help, support, features & ideas - please use https://discuss.redash.io \U0001F46B "
+about: "For help, support, features & ideas - please use Discussions \U0001F46B "
 labels: "Support Question"
 ---
 
 We use GitHub only for bug reports 🐛
 
-Anything else should be posted to https://discuss.redash.io 👫
+Anything else should be a discussion: https://github.com/getredash/redash/discussions/ 👫
 
-🚨For support, help & questions use https://discuss.redash.io/c/support
-💡For feature requests & ideas use https://discuss.redash.io/c/feature-requests
+🚨For support, help & questions use https://github.com/getredash/redash/discussions/categories/q-a
+💡For feature requests & ideas use https://github.com/getredash/redash/discussions/categories/ideas
 
 Alternatively, check out these resources below. Thanks! 😁.
 
-- [Forum](https://disucss.redash.io)
+- [Discussions](https://github.com/getredash/redash/discussions/)
 - [Knowledge Base](https://redash.io/help)

CONTRIBUTING.md

@@ -22,8 +22,7 @@ The following is a set of guidelines for contributing to Redash. These are guide
 
 ## Quick Links:
 
-- [User Forum](https://discuss.redash.io/)
-- [Feature Requests](https://discuss.redash.io/c/feature-requests)
+- [User Forum](https://github.com/getredash/redash/discussions)
 - [Documentation](https://redash.io/help/)
 
 
@@ -35,14 +34,14 @@ The following is a set of guidelines for contributing to Redash. These are guide
 When creating a new bug report, please make sure to:
 
 - Search for existing issues first. If you find a previous report of your issue, please update the existing issue with additional information instead of creating a new one.
-- If you are not sure if your issue is really a bug or just some configuration/setup problem, please start a discussion in [the support forum](https://discuss.redash.io/c/support) first. Unless you can provide clear steps to reproduce, it's probably better to start with a thread in the forum and later to open an issue.
+- If you are not sure if your issue is really a bug or just some configuration/setup problem, please start a [Q&A discussion](https://github.com/getredash/redash/discussions/new?category=q-a) first. Unless you can provide clear steps to reproduce, it's probably better to start with a discussion and later to open an issue.
 - If you still decide to open an issue, please review the template and guidelines and include as much details as possible.
 
 ### Suggesting Enhancements / Feature Requests
 
 If you would like to suggest an enhancement or ask for a new feature:
 
-- Please check [the forum](https://discuss.redash.io/c/feature-requests/5) for existing threads about what you want to suggest/ask. If there is, feel free to upvote it to signal interest or add your comments.
+- Please check [the Ideas discussions](https://github.com/getredash/redash/discussions/categories/ideas) for existing threads about what you want to suggest/ask. If there is, feel free to upvote it to signal interest or add your comments.
 - If there is no open thread, you're welcome to start one to have a discussion about what you want to suggest. Try to provide as much details and context as possible and include information about *the problem you want to solve* rather only *your proposed solution*.
 
 ### Pull Requests

README.md

@@ -99,7 +99,7 @@ Redash supports more than 35 SQL and NoSQL [data sources](https://redash.io/help
 ## Getting Help
 
 * Issues: https://github.com/getredash/redash/issues
-* Discussion Forum: https://discuss.redash.io/
+* Discussion Forum: https://github.com/getredash/redash/discussions/
 
 ## Reporting Bugs and Contributing Code