document kiln glaze

TILE_AUTHOR_GUIDE.md

@@ -334,9 +334,14 @@ git push origin HEAD
 
 ### Temporary BOSH Release Tarball Locking
 
-_TODO_
-
-`kiln glaze`
+This functionality is likely not helpful for tile authors who only package their own BOSH releases or for those who only package a few BOSH releases.
+
+If you need to pause BOSH Release bumps in your Kilnfile.lock,
+you can execute `kiln glaze`.
+It sets the BOSH release version (constraint) fields to the semver from the Kilnfile.lock.
+[This command has a PR to make it more helpful for TAS/IST/TASW. See the PR here](https://github.com/pivotal-cf/kiln/pull/406).
+This effectively pins releaess to block Dependabot updates.
+PPE uses this command for TAS/IST/TASW prior to new major versions.
 
 ## Stemcell Version Management