Add supported git platforms page in documentation

docs/faq.md

@@ -2,7 +2,7 @@
 title: FAQs
 sidebar_label: FAQs
 description: Frequently asked questions about CodeRabbit.
-sidebar_position: 7
+sidebar_position: 8
 ---
 
 ### General

docs/guides/_category_.yml

@@ -1,4 +1,4 @@
 label: Guides
-position: 5
+position: 6
 collapsible: true
 collapsed: true

docs/integrations/_category_.yml

@@ -1,4 +1,4 @@
 label: Integrations
-position: 6
+position: 7
 collapsible: true
 collapsed: true

docs/platforms/_category_.yaml

@@ -0,0 +1,4 @@
+label: Supported Git Platforms
+position: 5
+collapsible: true
+collapsed: true

docs/platforms/platforms.md

@@ -0,0 +1,38 @@
+---
+title: Supported Git Platforms
+sidebar_label: Supported Git Platforms
+description: Overview of CodeRabbit's supported Git platforms.
+sidebar_position: 1
+---
+
+CodeRabbit supports various Git platforms to provide code review for your repositories. For the cloud-hosted Git platforms, you can [login][login] to CodeRabbit and add your repositories. The following platforms are supported:
+
+## GitHub
+
+| Host                     | Support                            |
+|--------------------------|------------------------------------|
+| GitHub.com               | [Supported][login]                 |
+| GitHub Enterprise Server | [Supported](self-hosted-github.md) |
+
+## GitLab
+
+| Host                | Support                            |
+|---------------------|------------------------------------|
+| GitLab.com          | [Supported](saas-gitlab.md)        |
+| GitLab Self Managed | [Supported](self-hosted-gitlab.md) |
+
+## Azure DevOps
+
+| Host                | Support     |
+|---------------------|-------------|
+| Azure DevOps Cloud  | Coming soon |
+| Azure DevOps Server | Coming soon |
+
+## Bitbucket
+
+| Host                  | Support     |
+|-----------------------|-------------|
+| Cloud                 | Coming soon |
+| Bitbucket Data Center | Coming soon |
+
+[login]: https://app.coderabbit.ai/login