add some rought branch sync description

docs/unsure-where-to-put/dev-notes.md

@@ -1,3 +1,26 @@
+# build
+
+```
 TAGS="sqlite" make build generate-swagger
+```
+
+# launch local
+
+```
 ./gitea admin user create --name me --password me --email "buero@meissa.de"
 ./gitea admin user generate-access-token -u me -t token --scopes write:activitypub,write:repository,write:user
+```
+
+# sync base branch
+
+```
+git remote add git@codeberg.org:forgejo/forgejo.git
+
+git checkout forgejo-development
+git rebase forgejo/forgejo-development
+git push --force
+
+git checkout forgejo-federated-star
+git rebase forgejo-development
+git push --force
+```