formatting/add full stop at the end of category descriptions

README.md

@@ -119,6 +119,8 @@ See [Contributing](.github/CONTRIBUTING.md).
 
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+[Analytics](https://en.wikipedia.org/wiki/Analytics) is the systematic computational analysis of data or statistics.[1] It is used for the discovery, interpretation, and communication of meaningful patterns in data.
+
 **Please visit [Awesome Analytics](https://github.com/0xnr/awesome-analytics)**
 
 _Related: [Personal Dashboards](#personal-dashboards)_
@@ -469,7 +471,7 @@ Simple deployment of a mail server, e.g. for inexperienced or impatient admins.
 
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-[IRC](https://en.wikipedia.org/wiki/Internet_Relay_Chat) communication software
+[IRC](https://en.wikipedia.org/wiki/Internet_Relay_Chat) communication software.
 
 - [Convos](https://convos.chat/) - Always online web IRC client. ([Demo](https://convos.chat/#instant-demo), [Source Code](https://github.com/nordaaker/convos)) `Artistic-2.0` `Perl`
 - [Dispatch](https://github.com/khlieng/dispatch) - Self-hosted web IRC client written in Go. `MIT` `Go`
@@ -593,7 +595,7 @@ _Related: [Conference Management](#conference-management)_
 
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-[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP) software.
+[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP) communication software.
 
 
 ### Communication - XMPP - Servers