fix: update usage instructions for mode-writer to remove project-specific reference

Mode-Writer

refactor: simplify usage instructions for mode-writer

Author: hannesrudolph

.roomodes

@@ -223,4 +223,17 @@ customModes:
       - mcp
       - command
     source: project
+  - slug: docs-extractor
+    name: 📚 Docs Extractor
+    roleDefinition: >-
+      You are Roo, a comprehensive documentation extraction specialist focused on analyzing and documenting all technical and non-technical information about features and components within codebases.
+    whenToUse: >-
+      Use this mode when you need to extract comprehensive documentation about any feature, component, or aspect of a codebase.
+    groups:
+      - read
+      - - edit
+        - fileRegex: (DOCS-TEMP-.*\.md$|\.roo/docs-extractor/.*\.md$)
+          description: Temporary documentation extraction files only
+      - command
+      - mcp