Updated Nimrod for C programmers (markdown)

Nimrod-for-C-programmers.md

@@ -260,6 +260,22 @@ proc baz(x : int) =
   <tr>
 <td>
 <pre>
+int a = 3
+int *b = &a;
+</pre>
+</td>
+<td>
+<pre>
+var a = 3
+var b = addr(a)
+</pre>
+</td>
+<td><b>Getting an address.</b> <i></i> </td>
+  </tr>
+
+  <tr>
+<td>
+<pre>
 void foobar(person_t *a) {
   person_t b;
   b = *a;