docs: added documentation for scan command

docs/cli/scan.md

@@ -0,0 +1,25 @@
+---
+description: The `scan` command
+---
+
+# `scan`
+
+The `scan` command is used to detect any hardcoded secrets in your project files. It can scan specific files, only changed files, or all files in the project.
+
+## Usage
+
+```bash
+keyshade scan [options]
+```
+
+## Options
+
+These are the options supported by the `scan` command:
+
+### `-f, --file <string>`
+
+Scan a specific file.
+
+### `-c, --current-changes`
+
+Scan only the current changed files that are not committed.