configuration guide: update to include count of how many settings we have so far

...we've got 114 settings so far - pretty awesome! Also a challenge to 
navigate to find the right one that you want, though..... I'm open to 
suggestions (and contributions :P).

Changelog.md

@@ -2,6 +2,12 @@
 This file holds the changelog for Pepperminty Wiki. This is the master list of things that have changed (second only to the commit history!) - though the information for any particular release can also be found in the description of it's page for every release made on GitHub too.
 
 
+## v0.23-dev (unreleased)
+
+## Changed
+ - Updated the [configuration guide](https://starbeamrainbowlabs.com/labs/peppermint/peppermint-config-info.php) to include count of how many settings we have
+
+
 ## v0.22
 _No changes were made since the last release_
 

peppermint-config-info.php

@@ -63,6 +63,7 @@
 		
 		
 		<h2>Configuration Guide</h2>
+		<p>We have <?php echo(count(array_keys(json_decode(file_get_contents("peppermint.guiconfig.json"), true)))); ?> configurable settings so far!</p>
 		
 		<table class="main">
 			<colgroup>