docs(api): Fix typo

Author: tony

docs/api.md

@@ -9,7 +9,8 @@ For granular control see {ref}`libvcs <libvcs:index>`'s {ref}`Commands <libvcs:c
 ## Internals
 
 :::{warning}
-These APIs are purely internal not covered by versioning policies, they can and will break between versions.
+Be careful with these! Internal APIs are **not** covered by version policies. They can break or be removed between minor versions!
+
 If you need an internal API stabilized please [file an issue](https://github.com/vcs-python/vcspull/issues).
 :::