Updated Nimrod for C programmers (markdown)

Nimrod-for-C-programmers.md

@@ -28,6 +28,27 @@ Note: Code examples are not exactly one-to-one, there may be subtle differences
     <th>C</th><th>Nimrod</th><th>Comment</th>
   </tr>
 
+
+  <tr>
+<td>
+```C
+9 % 8
+-9 % 8
+(unsigned)(-9) % (unsigned)(8)
+```
+</td>
+<td>
+```Nimrod
+9 mod 8
+-9 mod 8
+-9 %% 8
+```
+</td>
+<td><b>Modulo operator</b>. <i>%% treats its argument as unsigned numbers</i></i>
+</td>
+  </tr>
+
+
   <tr>
 <td>
 ```C