updated release notes for 0.7.0

Author: yvess

RELEASE.md

@@ -9,6 +9,14 @@
 - Added user login via django
 - Added API for snapshot upload
 - Added site config for homepage_snippet and search_enabled
+- Added language for homepage snippet
+- Added fathom support
+- Added data migration for snapshot json field to file refactor
+- Added vue file upload for snapshot file
+- Added frontend login page
+- Added frontend snapshot editing
+- Added apscheduler for screenshot generation
+- Updated django image with new python package versions
 
 *Upgrade notes*:
 - Upgrading to 0.7.0 changes how snapshots are stored. The snapshot data is moved from a postgres json field to an external file. The migration is a normal django data migration and runs in the django database migration process (./manage.py migrate). The snapshot data json field will be removed in a future a release.