Update README.md

Author: Sean-Haverstock

README.md

@@ -60,6 +60,6 @@ To run Puppeteer tests generated by spearmint, install the following in your dev
 > Natlyn [@natlynp](https://github.com/natlynp)  · 
 > Nick [@nicolaspita](https://github.com/nicolaspita)  · 
 > Rachel [@rachethecreator](https://github.com/rachethecreator) <br />
-> Sean [@sean-haverstock](https://github.com/https://github.com/Sean-Haverstock) &nbsp;&middot;&nbsp;
+> Sean [@sean-haverstock](https://github.com/Sean-Haverstock) &nbsp;&middot;&nbsp;
 > Sieun [@sieunjang](https://github.com/sieunjang) &nbsp;&middot;&nbsp;
 > Tristen [@twastell](https://github.com/twastell)