Add version 0.22.0 to docs

Change-Id: Ie0e052078a17dd241374ac2eabfca00d809ee8d2
PiperOrigin-RevId: 231345927
diff --git a/scripts/docs/doc_versions.bzl b/scripts/docs/doc_versions.bzl
index 09f2c80..20d7411 100644
--- a/scripts/docs/doc_versions.bzl
+++ b/scripts/docs/doc_versions.bzl
@@ -23,6 +23,10 @@
 
 DOC_VERSIONS = [
     {
+        "version": "0.22.0",
+        "sha256": "bec5cfaa5560e082e41e33bde276cf93f0f7bcfd2914a3e868f921df8b3ab725",
+    },
+    {
         "version": "0.21.0",
         "sha256": "23ec39c0138d358c544151e5c81586716d5d1c6124f10a742bead70516e6eb93",
     },
diff --git a/site/_config.yml b/site/_config.yml
index 9e82fe0..93bb2d0 100644
--- a/site/_config.yml
+++ b/site/_config.yml
@@ -15,6 +15,7 @@
 # This must be kept in sync with //site/script/docs:versions.bzl
 doc_versions:
   - master
+  - 0.22.0
   - 0.21.0
   - 0.20.0
   - 0.19.2