Fix formatting issue with GHES compatibility table

Also add a note about GHES 3.11 supporting but not shipping with CodeQL Action v3.

README.md

@@ -38,14 +38,14 @@ For more information, see "[Code scanning: deprecation of CodeQL Action v2](http
 We typically release new minor versions of the CodeQL Action and Bundle when a new minor version of GitHub Enterprise Server (GHES) is released. When a version of GHES is deprecated, the CodeQL Action and Bundle releases that shipped with it are deprecated as well.
 
 | Minimum CodeQL Action | Minimum CodeQL Bundle Version | GitHub Environment | Notes |
-|---------|----------|--------------|
-| `v3.25.11` | `2.17.6` | Enterprise Server 3.14 |  |
+|-----------------------|-------------------------------|--------------------|-------|
+| `v3.25.11` | `2.17.6` | Enterprise Server 3.14 | |
 | `v3.24.11` | `2.16.6` | Enterprise Server 3.13 | |
 | `v3.22.12` | `2.15.5` | Enterprise Server 3.12 | |
-| `v2.22.1` | `2.14.6` | Enterprise Server 3.11 | |
-| `v2.20.3` | `2.13.5` | Enterprise Server 3.10 | Does not support CodeQL Action v3 |
+| `v2.22.1` | `2.14.6` | Enterprise Server 3.11 | Supports CodeQL Action v3, but did not ship with CodeQL Action v3. For more information, see "[Code scanning: deprecation of CodeQL Action v2](https://github.blog/changelog/2024-01-12-code-scanning-deprecation-of-codeql-action-v2/#users-of-github-enterprise-server-311)." |
+| `v2.20.3` | `2.13.5` | Enterprise Server 3.10 | Does not support CodeQL Action v3. |
 
-CodeQL Action `v2` will stop receiving updates when GHES 3.11 is deprecated. 
+CodeQL Action v2 will stop receiving updates when GHES 3.11 is deprecated. 
 
 See the full list of GHES release and deprecation dates at [GitHub Enterprise Server releases](https://docs.github.com/en/enterprise-server/admin/all-releases#releases-of-github-enterprise-server).