Improve update scripts

Author: CGamesPlay

doc/MAINTENANCE.md

@@ -2,13 +2,13 @@
 
 ## Upgrading the restic version
 
-1. Use `./scripts/update-restic.sh` to update the submodule. It automatically pushes a modified tag to the custom restic fork on Github.
+1. Use `./scripts/update-restic.sh pull vX.Y.Z` to update the submodule. It automatically pushes a modified tag to the custom restic fork on Github.
 3. Use `go mod tidy` to fetch all the modules and remove the unused ones.
-4. Use `./scripts/update-cmd.sh` to update the repository opening code.
+4. Use `./scripts/update-restic.sh update-cmd` to update the repository opening code.
    - If the patch fails, use `diff -u restic/cmd/restic/global.go cmd/git-remote-restic/restic.go > scripts/update-cmd.patch` to update it.
 5. Use `make test` to verify everything still works.
    - Use `git log -pG <pattern>` to identify commits that changed APIs that are now broken.
 6. Update the VERSION file to the new version and update the README to indicate the correct version of restic.
 7. Make a commit.
 8. Use `make release` to compile a new release.
-9. Push everything to Github, and make a new release there.
+9. Push everything to Github, and make a new release there.