Minor fix in MPC page

chapter06/mpc.xml

@@ -51,7 +51,7 @@
 <screen><userinput remap="make">make
 make html</userinput></screen>
 
-    <para>运行下列命令以测试编译结果：</para>
+    <para>运行以下命令以测试编译结果：</para>
 
 <screen><userinput remap="test">make check</userinput></screen>