Update index.md

Author: oxygen-dioxide

topics/twitter/index.md

@@ -1,13 +1,13 @@
 ---
-display_name: Twitter
+display_name: X (Twitter)
 github_url: https://github.com/twitter
 logo: twitter.png
 created_by: Jack Dorsey, Noah Glass, Biz Stone, Evan Williams
 released: March 21, 2006
-short_description: Twitter is an online news and social networking service where users post and interact with messages, known as “Tweets”.
+short_description: An online news and social networking service where users post and interact with messages, known as “Tweets”.
 related: tweets, twitter-api, twitter-api-v2, twitter-bot, twitter-client
 topic: twitter
 url: https://twitter.com
 wikipedia_url: https://en.wikipedia.org/wiki/Twitter
 ---
-Twitter is an online news and social networking service where users post and interact with messages, known as “Tweets.” These messages were originally restricted to 140 characters, but in November 2017, the limit was doubled to 280 characters for all languages except Japanese, Korean, and Chinese.
+X, formerly known as Twitter, is an online news and social networking service where users post and interact with messages, known as “Tweets.” These messages were originally restricted to 140 characters, but in November 2017, the limit was doubled to 280 characters for all languages except Japanese, Korean, and Chinese.