fix: add blank line before list in research-synthesis.md

Apply markdownlint formatting rule to add blank line before list items.

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Co-Authored-By: Claude <[email protected]>

Author: iaminawe

docs/research/codebase-context/research-synthesis.md

@@ -280,6 +280,7 @@ Following Information Analyst patterns:
 
 This restructuring will change the output format and process. Users with existing
 codebase context documents should:
+
 - **Still valid:** All file:line citations remain accurate
 - **May need updating:** If they reference specific sections, page numbers may shift
 - **Recommended:** Regenerate context analyses using the new prompt format for consistency