Update callouts to work on github. (#22245)

docs/reference/policy-engine.md

@@ -113,7 +113,9 @@ There are three possible decisions a rule can enforce:
 - `ask_user`: The user is prompted to approve or deny the tool call. (In
   non-interactive mode, this is treated as `deny`.)
 
-> **Note:** The `deny` decision is the recommended way to exclude tools. The
+<!-- prettier-ignore -->
+> [!NOTE]
+> The `deny` decision is the recommended way to exclude tools. The
 > legacy `tools.exclude` setting in `settings.json` is deprecated in favor of
 > policy rules with a `deny` decision.
 
@@ -239,15 +241,17 @@ directory are **ignored**.
 - **Linux / macOS:** Must be owned by `root` (UID 0) and NOT writable by group
   or others (e.g., `chmod 755`).
 - **Windows:** Must be in `C:\ProgramData`. Standard users (`Users`, `Everyone`)
-  must NOT have `Write`, `Modify`, or `Full Control` permissions. _Tip: If you
-  see a security warning, use the folder properties to remove write permissions
-  for non-admin groups. You may need to "Disable inheritance" in Advanced
-  Security Settings._
+  must NOT have `Write`, `Modify`, or `Full Control` permissions. If you see a
+  security warning, use the folder properties to remove write permissions for
+  non-admin groups. You may need to "Disable inheritance" in Advanced Security
+  Settings.
 
-**Note:** Supplemental admin policies (provided via `--admin-policy` or
-`adminPolicyPaths` settings) are **NOT** subject to these strict ownership
-checks, as they are explicitly provided by the user or administrator in their
-current execution context.
+<!-- prettier-ignore -->
+> [!NOTE]
+> Supplemental admin policies (provided via `--admin-policy` or
+> `adminPolicyPaths` settings) are **NOT** subject to these strict ownership
+> checks, as they are explicitly provided by the user or administrator in their
+> current execution context.
 
 ### TOML rule schema
 
@@ -348,7 +352,9 @@ using the `mcpName` field. **This is the recommended approach** for defining MCP
 policies, as it is much more robust than manually writing Fully Qualified Names
 (FQNs) or string wildcards.
 
-> **Warning:** Do not use underscores (`_`) in your MCP server names (e.g., use
+<!-- prettier-ignore -->
+> [!WARNING]
+> Do not use underscores (`_`) in your MCP server names (e.g., use
 > `my-server` rather than `my_server`). The policy parser splits Fully Qualified
 > Names (`mcp_server_tool`) on the _first_ underscore following the `mcp_`
 > prefix. If your server name contains an underscore, the parser will