Add Mobimeo & ybasket to Readme

Myself as contributor and my employer as happy adopter of Scala Steward.

Author: ybasket

README.md

@@ -142,6 +142,7 @@ Thanks goes to these wonderful people for contributing to Scala Steward:
 * [Toshiyuki Takahashi](https://github.com/tototoshi)
 * [Victor Viale](https://github.com/Koroeskohr)
 * [Yan](https://github.com/yaroot)
+* [Yannick Heiber](https://github.com/ybasket)
 * [Yoan Alvarez-Vanhard](https://github.com/tyoras)
 * [Zack Powers](https://github.com/Milyardo)
 * [Zelenya](https://github.com/Zelenya)
@@ -171,6 +172,7 @@ Consider creating PR to add your company to the list and join the community.
 * [iAdvize](https://www.iadvize.com/en/)
 * [LeadIQ](https://leadiq.com/)
 * [Lightbend](https://www.lightbend.com/)
+* [Mobimeo](https://www.mobimeo.com/)
 * [Ocado Technology](https://ocadotechnology.com/)
 * [PlayQ](https://www.playq.com/)
 * [Precog](https://precog.com/)