Added CameraX readme file

BUG=136039642, 136467271
Test: manual, it's a readme, I read..ish.
Change-Id: Id2e74324e4ec024a29df54eef8eeff7b98ed2082
diff --git a/camera/README.md b/camera/README.md
new file mode 100644
index 0000000..b758868
--- /dev/null
+++ b/camera/README.md
@@ -0,0 +1,21 @@
+# androidx.camera
+
+Jetpack's CameraX support library provides an easy to use and feature rich Android camera API
+
+[Library owners](OWNERS)
+
+[Release notes](https://developer.android.com/jetpack/androidx/releases/camera)
+
+[Browse
+source](https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/camera/)
+
+[Reference
+documentation](https://developer.android.com/reference/androidx/classes.html)
+
+[Existing open
+bugs](https://issuetracker.google.com/issues?q=componentid:618491%20status:open)
+
+[File a new
+bug](https://issuetracker.google.com/issues/new?component=618491&template=1257717)
+
+[Email us](mailto:[email protected])