Update README.md

Author: e-paj

CASE 10: Mental Health/README.md

@@ -25,7 +25,8 @@
 [![Screenshot-316.png](https://i.postimg.cc/wMrDvh8k/Screenshot-316.png)](https://postimg.cc/FkjYCkKf)
 - Number of people who were given treatment based on their location:
 [![Screenshot-317.png](https://i.postimg.cc/Mp7j2kT5/Screenshot-317.png)](https://postimg.cc/gx008T3L)
-- [![Screenshot-318.png](https://i.postimg.cc/DyscZM0J/Screenshot-318.png)](https://postimg.cc/yk1RpnFs)
+- Range of number of employees:
+[![Screenshot-318.png](https://i.postimg.cc/DyscZM0J/Screenshot-318.png)](https://postimg.cc/yk1RpnFs)
 - [![Screenshot-319.png](https://i.postimg.cc/mDJQZYGy/Screenshot-319.png)](https://postimg.cc/PpbL28JC)
 - [![Screenshot-319.png](https://i.postimg.cc/mDJQZYGy/Screenshot-319.png)](https://postimg.cc/PpbL28JC)
 - [![Screenshot-321.png](https://i.postimg.cc/bwgkSchJ/Screenshot-321.png)](https://postimg.cc/MncvgLX2)