Minor bugfix in Gang.js and updating documentation for spawn() and stopAction()

doc/build/html/_sources/netscriptsingularityfunctions.rst.txt

@@ -162,6 +162,25 @@ isBusy
     Returns a boolean indicating whether or not the player is currently performing an 'action'. These actions include
     working for a company/faction, studying at a univeristy, working out at a gym, creating a program, or committing a crime.
 
+stopAction
+----------
+
+.. js:function:: stopAction()
+
+    If you are not in BitNode-4, then you must have Level 1 of Source-File 4 in order to run this function.
+    This function is used to end whatever 'action' the player is currently performing. The player
+    will receive whatever money/experience/etc. he has earned from that action.
+
+    The actions that can be stopped with this function are:
+
+    * Studying at a university
+    * Working for a company/faction
+    * Creating a program
+    * Committing a Crime
+
+    This function will return true if the player's action was ended. It will return false if the player was not
+    performing an action when this function was called.
+
 upgradeHomeRam
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