refactor: merge redundant path entries in .coderabbit.yaml

- Combine identical instructions for *.md and docs/**/* into single entry
- Use **/*.md pattern to cover all markdown files
- Remove duplication while preserving all review instructions

Author: AlmostBald-TRADING

.coderabbit.yaml

@@ -58,17 +58,8 @@ reviews:
         - Dependabot configuration
         - Security scanning setup
 
-    # Documentation
-    - path: "*.md"
-      instructions: |
-        Focus on:
-        - Clarity and completeness
-        - Up-to-date information
-        - Proper markdown formatting
-        - Security policy accuracy
-        - Contribution guidelines
-
-    - path: "docs/**/*"
+    # Documentation (markdown files in root and docs directory)
+    - path: "**/*.md"
       instructions: |
         Focus on:
         - Clarity and completeness