Fix h3 error in docs

MarkEWaite · MarkEWaite · commit 623b281b76d4 · 2019-12-20T11:47:29.000-07:00
diff --git a/README.adoc b/README.adoc
@@ -63,7 +63,7 @@ Extensions include:
 - <<deprecated-extensions>>
 
 [[clone-extensions]]
-===Clone Extensions
+=== Clone Extensions
 
 [[advanced-clone-behaviours]]
 ==== Advanced clone behaviours
