Update documentation to reflect the default build options.

doc/body.md

@@ -81,9 +81,9 @@ Mini-XML provides a single header file which you include:
 #include <mxml.h>
 ```
 
-The Mini-XML library is included with your program using the `-lmxml` option:
+The Mini-XML library is included with your program using the `-lmxml4` option:
 
-    gcc -o myprogram myprogram.c -lmxml
+    gcc -o myprogram myprogram.c -lmxml4
 
 If you have the `pkg-config` software installed, you can use it to determine the
 proper compiler and linker options for your installation:

doc/mxml.html

@@ -433,8 +433,8 @@ span.string {
 <p>Mini-XML provides a single header file which you include:</p>
 <pre><code class="language-c"><span class="directive">#include &lt;mxml.h&gt;</span>
 </code></pre>
-<p>The Mini-XML library is included with your program using the <code>-lmxml</code> option:</p>
-<pre><code>gcc -o myprogram myprogram.c -lmxml
+<p>The Mini-XML library is included with your program using the <code>-lmxml4</code> option:</p>
+<pre><code>gcc -o myprogram myprogram.c -lmxml4
 </code></pre>
 <p>If you have the <code>pkg-config</code> software installed, you can use it to determine the proper compiler and linker options for your installation:</p>
 <pre><code>gcc `pkg-config --cflags mxml4` -o myprogram myprogram.c `pkg-config --libs mxml4`