[GH] Add playground support for androidx.lifecycle

Adds a workaround to exclude androidx.lifecycle transitive dependencies from legacy-support-core-utils
resolving an error for "Could not find lifecycle-runtime.aar" when building lifecycle-services.

Test: cd lifecycle && ./gradlew bOS

This is an imported pull request from https://github.com/androidx/androidx/pull/101.

Resolves #101
Github-Pr-Head-Sha: 82a52fb37fe0f9424704966a9353f1c2496ebbcb
GitOrigin-RevId: 213a2ee640f6c2e7f944558cd82f01ae1c7bf11b
Change-Id: I2a7614cbadc7b10e11ff61034bc9e5d117d8b04f
diff --git a/README.md b/README.md
index c9828cb9..dcc6d1a 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@
 * [Activity](activity)
 * [Biometric](biometric)
 * [Fragment](fragment)
+* [Lifecycle](lifecycle)
 * [Navigation](navigation)
 * [Paging](paging)
 * [Room](room)