Update README.md

Author: ExtNinja2099

README.md

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   <strong>This Magisk module changes bootanimation on AOSP ROMs.  
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+  <strong>Bootanimation size is based on OnePlus 8 Pro.  
     <h3><a href="https://github.com/ExtNinja2099/OPCustomBoot/wiki">Wiki</a></h3>
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