Update new new location of local maven publishing

Following r.android.com/3212397 that made this change in source

PiperOrigin-RevId: 660538442
Change-Id: I62c186aa9d7bc5824369f45873c341d4142b5edc
diff --git a/docs/onboarding.md b/docs/onboarding.md
index 489b507..410f72e 100644
--- a/docs/onboarding.md
+++ b/docs/onboarding.md
@@ -971,7 +971,7 @@
 repository artifact:
 
 ```shell
-# Creates <path-to-checkout>/out/androidx/build/support_repo/
+# Creates <path-to-checkout>/out/repository/
 ./gradlew createArchive
 ```
 
@@ -988,7 +988,7 @@
         mavenCentral()
         // Add this
         maven {
-            setUrl("<path-to-sdk>/out/androidx/build/support_repo/")
+            setUrl("<path-to-sdk>/out/repository/")
         }
     }
 }
@@ -1018,8 +1018,8 @@
 full m2repository to avoid version issues of other modules. You can either take
 the unzipped directory from
 `<path-to-checkout>/out/dist/top-of-tree-m2repository-##.zip`, or from
-`<path-to-checkout>/out/androidx/build/support_repo/` after building `androidx`.
-Here is an example of replacing the RecyclerView module:
+`<path-to-checkout>/out/repository/` after building `androidx`. Here is an
+example of replacing the RecyclerView module:
 
 ```shell
 $TARGET=YOUR_ANDROID_PATH/prebuilts/sdk/current/androidx/m2repository/androidx/recyclerview/recyclerview/1.1.0-alpha07;