Add best practices doc

PiperOrigin-RevId: 154734540
diff --git a/site/docs/best-practices.md b/site/docs/best-practices.md
new file mode 100644
index 0000000..e936d31
--- /dev/null
+++ b/site/docs/best-practices.md
@@ -0,0 +1,4 @@
+---
+layout: redirect
+redirect: docs/best-practices.html
+---