JS: Add note and debugging and exploration

Author: asgerf

javascript/ql/src/semmle/javascript/dataflow/BackwardExploration.qll

@@ -8,8 +8,8 @@
  *
  * Data-flow exploration cannot be used with configurations depending on other configurations.
  *
- * NOTE: This library should only be used for debugging, not in production code. Backward
- * exploration in particular does not scale on non-trivial code bases and hence is of limited
+ * NOTE: This library should only be used for debugging and exploration, not in production code.
+ * Backward exploration in particular does not scale on non-trivial code bases and hence is of limited
  * usefulness as it stands.
  */
 

javascript/ql/src/semmle/javascript/dataflow/ForwardExploration.qll

@@ -8,7 +8,7 @@
  *
  * Data-flow exploration cannot be used with configurations depending on other configurations.
  *
- * NOTE: This library should only be used for debugging, not in production code.
+ * NOTE: This library should only be used for debugging and exploration, not in production code.
  */
 
 import javascript

javascript/ql/src/semmle/javascript/explore/CallGraph.qll

@@ -18,6 +18,8 @@
  *   and function.getName() = "targetFunction"
  * select invoke, invoke, function, "Call path to 'targetFunction'"
  * ```
+ *
+ * NOTE: This library should only be used for debugging and exploration, not in production code.
  */
 import javascript
 private import DataFlow