Update README.md

Author: pinkhoodie

README.md

@@ -13,7 +13,7 @@
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-<p align="center"><strong>All-in-one web3 SDK for Browser, Node and Mobile apps</strong></p>
+<p align="center"><strong>All-in-one web3 SDK for Browser, Node and Mobile apps.</strong></p>
 
 ## Features