Minor fixes to Gum theme docs

gum/README.md

@@ -8,7 +8,7 @@ Gum is a clean and responsive theme for [Pelican](https://github.com/getpelican/
 
 ### Configuration
 
-* Edit your settings file to include the following if desired (any values left blank won't show up in the theme):
+* Edit your settings file to include the following, if desired (any values left blank won't show up in the theme):
 
 ```
 GITHUB_URL = ''
@@ -24,33 +24,33 @@ GOOGLE_ANALYTICS_ID = ''
 GOOGLE_ANALYTICS_SITENAME = ''
 ```
 
-Alternatively you can use [Piwik](http://piwik.org/) for analytics if you set the following settings, where the url has to be given without leading `http://` and trailing `/`.
+Alternatively you can use [Piwik](http://piwik.org/) for analytics if you set the following settings, where the URL has to be specified without the leading `https://` and trailing `/`.
 
 ```
 PIWIK_ID = ''
 PIWIK_URL = ''
 ```
 
-To use Juvia for comments, fill out the following values, again the url without leading `http://` and trailing `/`.
+To use Juvia for comments, fill out the following values, again without including the leading `https://` and trailing `/` in the URL.
 
 ```
 JUVIA_URL = ''
 JUVIA_ID = ''
 ```
 
-To use Discus, fill out the following values, again the url without leading `http://` and trailing `/`.
+To use Disqus, add the Disqus site name via the following variable.
 
 ```
 DISQUS_SITENAME = ''
 ```
 
-Other Features include:
+Other features include:
 
 ```
 SITESUBTITLE = 'your site subtitle'
 ```
 
-The following standard pelican settings are honored:
+The following standard Pelican settings are honored:
 
 ```
 DISPLAY_CATEGORIES_ON_MENU