Update docs to use the latest slack community links (#40)

Author: misraved

.github/ISSUE_TEMPLATE/config.yml

@@ -1,7 +1,7 @@
 blank_issues_enabled: false
 contact_links:
   - name: Questions
-    url: https://steampipe.io/community/join
+    url: https://turbot.com/community/join
     about: GitHub issues in this repository are only intended for bug reports and feature requests. Other issues will be closed. Please ask and answer questions through the Steampipe Slack community.
   - name: Steampipe CLI Bug Reports and Feature Requests
     url: https://github.com/turbot/steampipe/issues/new/choose

README.md

@@ -4,7 +4,7 @@
 
 * **[Get started →](https://hub.steampipe.io/plugins/turbot/zendesk)**
 * Documentation: [Table definitions & examples](https://hub.steampipe.io/plugins/turbot/zendesk/tables)
-* Community: [Slack Channel](https://steampipe.io/community/join)
+* Community: [Join #steampipe on Slack →](https://turbot.com/community/join)
 * Get involved: [Issues](https://github.com/turbot/steampipe-plugin-zendesk/issues)
 
 ## Quick start

docs/index.md

@@ -83,4 +83,4 @@ connection "zendesk" {
 ## Get involved
 
 * Open source: https://github.com/turbot/steampipe-plugin-zendesk
-* Community: [Slack Channel](https://steampipe.io/community/join)
+* Community: [Join #steampipe on Slack →](https://turbot.com/community/join)