Update javascript/ql/src/semmle/javascript/frameworks/React.qll

Co-authored-by: Erik Krogh Kristensen <erik-krogh@github.com>

Author: asgerf

javascript/ql/src/semmle/javascript/frameworks/React.qll

@@ -596,6 +596,7 @@ private class UseStateStep extends PreCallGraphStep {
  * function Foo() {
  *   let succ = useContext(MyContext);
  * }
+ * ```
  */
 private class UseContextStep extends PreCallGraphStep {
   override predicate step(DataFlow::Node pred, DataFlow::Node succ) {