Removed slightly misleading phrasing

HTML does not have a great deal to with XML anymore. Suggesting that HTML is currently used to format XML is misleading and potentially unhelpful to readers.

Author: tommorris

topics/xml/index.md

@@ -8,4 +8,4 @@ related: css, html, rss, xhtml,web
 url: https://www.w3.org/TR/xml/
 wikipedia_url: https://en.wikipedia.org/wiki/XML
 ---
- XML stands for Extensible Markup Language and is a text-based markup language. It is designed to store and transport data, HTML is used to format and display the same data. It allows developers to create their own self-descriptive tags, or language, that suits their application.
+ XML stands for Extensible Markup Language and is a text-based markup language. It is designed to store and transport data. It allows developers to create their own self-descriptive tags, or language, that suits their application.