fix: update release workflow and add migrration info

.github/workflows/docs.yml

 name: Release Docs
 
 on:
-  release:
-    types: [ released ]
+  push:
+    branches:
+    - main
 
 jobs:
   build-docs:

docs/source/migration_to_v1.rst

 Migration Guide for v0.1.0
 ==========================
 
+The v0.1 release of semantic router introduces a few breaking changes. This guide will 
+help you migrate your code to the new version.
+
 - `from semantic_router import RouteLayer` -> `from semantic_router.routers import SemanticRouter`
 - `SemanticRouter.add(route: Route)` -> `SemanticRouter.add(routes: List[Route])`
-- If expecting routes to sync between local and remote on initialization, use `SemanticRouter(..., auto_sync="local")`. Read more about `auto_sync` and :doc:`synchronization strategies <route-layer/sync>`.
+- If expecting routes to sync between local and remote on initialization, use `SemanticRouter(..., auto_sync="local")`. Read more about `auto_sync` and :doc:`synchronization strategies <semantic-router/route-layer/sync>`.
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