add title text to explain reset a bit more

spiffworkflow-frontend/src/routes/ProcessInstanceShow.tsx

@@ -851,8 +851,13 @@ export default function ProcessInstanceShow({ variant }: OwnProps) {
         );
       }
       if (canResetProcess(task)) {
+        let titleText =
+          'This will reset (rewind) the process to put it into a state as if the execution of the process never went past this task. ';
+        titleText += 'Yes, we invented a time machine. ';
+        titleText += 'And no, you cannot go back after using this feature.';
         buttons.push(
           <Button
+            title={titleText}
             data-qa="reset-process-button"
             onClick={() => resetProcessInstance()}
           >