freeCodeCamp/guide/english/user-experience-design/a-b-testing
fredericksjr 6a9a3d2769 fixed spelling of 'about' (#28043)
* fixed spelling of 'about'

* Update index.md
2018-10-25 21:51:39 +01:00
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index.md fixed spelling of 'about' (#28043) 2018-10-25 21:51:39 +01:00