Update README.md

Author: offalynne

README.md

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 <p align="center"><img src="https://raw.githubusercontent.com/offalynne/input/main/LOGO.png" style="display:block; margin:auto; width:300px"></p>
 
-h1 align="center">Input 8.1.3</h1>
+<h1 align="center">Input 8.1.3</h1>
 
 <p align="center">Comprehensive cross-platform input for GameMaker 2022 LTS by <a href="https://www.jujuadams.com/" target="_blank">Juju Adams</a>, <a href="https://offalynne.neocities.org/">Alynne Keith</a>, and <a href="https://offalynne.github.io/Input/#/8.1/Credits">Friends</a></p>