Even more fixed apostrophe

website/src/_posts/2019-04-liftoff-18.md

@@ -17,7 +17,7 @@ Hi! You're reading our '30 Days to Liftoff' blog post challenge about the **laun
 
 - [Artur](https://github.com/arturi) and [Alex](https://github.com/nqst) had a call where they discussed Alex’s design improvements, and Alex's [Design Facelift PR](https://github.com/transloadit/uppy/pull/1442) is now ready to be reviewed and merged :tada:
 
-- Artur iterated on [Samuel'](https://github.com/samuelayo)s [XHR backend examples](https://github.com/transloadit/uppy/pull/1389).
+- Artur iterated on [Samuel's](https://github.com/samuelayo) [XHR backend examples](https://github.com/transloadit/uppy/pull/1389).
 
 - Ife, Artur, Alex and Marius are chasing down an issue where appending form fields is [causing 423 responses from tusd](https://github.com/tus/tusd/issues/259). Marius already pushed out a number of fixes as a result and released a new version of tus-js-client (1.7.1).