Merge pull request #713 from fluxcd/doc-fixes

docs: styling of hint blocks

docs/guides/installation.md

@@ -118,11 +118,11 @@ flux bootstrap github \
   --personal
 ```
 
-!!! hint "Deploy Key"
-    The bootstrap command creates a ssh key which it stores as a secret in the
+!!! hint "Deploy key"
+    The bootstrap command creates an SSH key which it stores as a secret in the
     Kubernetes cluster. The key is also used to create a deploy key in the GitHub
     repository. The new deploy key will be linked to the personal access token used
-    to authenticate. Removing the personal access token will remove the deploy key.
+    to authenticate. **Removing the personal access token will also remove the deploy key.**
 
 Run the bootstrap for a repository owned by a GitHub organization: