Docs: Replace example password that has special chars with 'changeme'
@@ -246,7 +246,7 @@ $ gpperfmon_install</codeblock>
<p>Create the <codeph>gpperfmon</codeph> database, create the<codeph> gpmon</codeph>
superuser, and enable the data collection agents:</p>
<codeblock>$ su - gpadmin
-$ gpperfmon_install --enable --password p@$$word --port 5432
+$ gpperfmon_install --enable --password changeme --port 5432
$ gpstop -r</codeblock>
</section>
<section id="section6">
