Update src/formats/antigravity.py

This is true. We should be talking about `rule `files not `workflow` files here...

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: santosomar

src/formats/antigravity.py

@@ -13,13 +13,13 @@
 
 class AntigravityFormat(BaseFormat):
     """
-    Google Antigravity format implementation (.md workflow files).
+    Google Antigravity format implementation (.md rule files).
 
     Antigravity uses .md files with YAML frontmatter containing:
     - description: Rule description (required by Antigravity spec)
     
-    Workflows are stored in .agent/workflows/ and can be triggered
-    on-demand with /workflow-name in the Antigravity interface.
+    Rules are stored in .agent/rules/ and can be triggered
+    on-demand with /rule-name in the Antigravity interface.
     """
 
     def get_format_name(self) -> str: