docs: regal (#82)

Author: cr-ruhanmuzaffar

docs/tools/regal.md

@@ -0,0 +1,25 @@
+---
+title: Regal
+sidebar_label: Regal
+description: CodeRabbit's guide to Regal.
+---
+
+[Regal](https://docs.styra.com/regal/) is a linter and language server for Rego.
+
+## Files
+
+Regal will run on files with the following extensions:
+
+- `.rego`
+
+## Configuration
+
+Regal uses a YAML style configuration file. We look for the following config file:
+
+- `.regal/config.yaml`
+
+CodeRabbit will use the default settings based on the profile selected if no config file is found.
+
+## Links
+
+- [Regal Configuration](https://docs.styra.com/regal#configuration/)

docs/tools/tools.md

@@ -55,6 +55,7 @@ Remove extraneous f prefix
 | Plaintext                   | [LanguageTool][LanguageTool]                               |
 | Protobuf                    | [Buf][Buf]                                                 |
 | Python                      | [Ruff][Ruff]                                               |
+| Regal                       | [Regal][Regal]                                             |
 | Ruby                        | [Rubocop][Rubocop]                                         |
 | Shell (sh, bash, ksh, dash) | [ShellCheck][ShellCheck]                                   |
 | Swift                       | [SwiftLint][SwiftLint]                                     |
@@ -79,4 +80,5 @@ Remove extraneous f prefix
 [Detekt]: ./detekt.md
 [Rubocop]: ./rubocop.md
 [Buf]: ./buf.md
-[Actionlint]: ./actionlint.md
+[Actionlint]: ./actionlint.md
+[Regal]: ./regal.md