add : table added to README.md

Author: sadrasabouri

README.md

@@ -1,5 +1,13 @@
 # mafia
 :dollar: Web Server Application For Mafia Game Playing On Local Network
 
+# Roles
+| Role            | image(s)                                                                                 |
+| :-------------: |:---------------------------------------------------------------------------------------: |
+|      Don        | <img src="https://www.github.com/sadrasabouri/mafia/static/images/roles/Don.png">        |
+|     Doctor      | <img src="https://www.github.com/sadrasabouri/mafia/static/images/roles/Doctor_1.png"> <hr>
+                    <img src="https://www.github.com/sadrasabouri/mafia/static/images/roles/Doctor_2.png">   |
+|     Resident    | <img src="https://www.github.com/sadrasabouri/mafia/static/images/roles/Resident_1.png"> |
+
 # References
 Icons made by <a href="https://www.flaticon.com/authors/vectors-market" title="Vectors Market">Vectors Market</a> from <a href="https://www.flaticon.com/" title="Flaticon"> www.flaticon.com</a>