Add new NDK rules to the NDK docs

Hi wonderful Bazelers,

I'd happened to notice that the new NDK rules weren't referenced from the NDK docs, so I thought I'd toss up a quick change to help new users find their way.

Thanks for your consideration! Feel free (of course) to edit or push a different change if you'd prefer something else. (Was trying to strike a balance between the new rule being in their early stages and the old rule no longer being updated and not working for the past few years of NDKs. See https://github.com/bazelbuild/bazel/issues/12889 for more context.)

Thanks,
Chris
(ex-Googler, [compile_commands_extractor](https://github.com/hedronvision/bazel-compile-commands-extractor/issues) author, rules_boost collaborator, etc.)

Closes #18523.

PiperOrigin-RevId: 551585249
Change-Id: Ida162f086657673e0c2cd884afc59107bc539f8e
diff --git a/site/en/docs/android-ndk.md b/site/en/docs/android-ndk.md
index 1ac0b26..6c5f73a 100644
--- a/site/en/docs/android-ndk.md
+++ b/site/en/docs/android-ndk.md
@@ -34,9 +34,14 @@
 )
 ```
 
-For more information on the `android_ndk_repository` rule, see the [Build
+For more information about the `android_ndk_repository` rule, see the [Build
 Encyclopedia entry](/reference/be/android#android_ndk_repository).
 
+If you're using a recent version of the Android NDK (r22 and beyond), use the
+Starlark implementation of `android_ndk_repository`.
+Follow the instructions in
+[its README](https://github.com/bazelbuild/rules_android_ndk).
+
 ## Quick start {:#quick-start}
 
 To build C++ for Android, simply add `cc_library` dependencies to your