Deprecate examples inside bazelbuild/bazel

See: https://github.com/bazelbuild/examples/issues/201

Closes #18581.

PiperOrigin-RevId: 538469631
Change-Id: Ib0cfc6de5d9f0d2cc4fc045b47c2d8ce5a6b358e

examples/Readme.md

diff --git a/examples/Readme.md b/examples/Readme.md
new file mode 100644
index 0000000..82e220c
--- /dev/null
+++ b/examples/Readme.md
@@ -0,0 +1,3 @@
+# Bazel examples (Deprecated)
+
+This folder example is deprecated. In the future this folder will be deleted and all examples will be available in <https://github.com/bazelbuild/examples>.