Update Frameworks.qll

Author: shyun020

python/ql/lib/semmle/python/Frameworks.qll

@@ -91,3 +91,4 @@ private import semmle.python.frameworks.Urllib3
 private import semmle.python.frameworks.Xmltodict
 private import semmle.python.frameworks.Yaml
 private import semmle.python.frameworks.Yarl
+private import semmle.python.frameworks.Markup