fix br html tags in readme

README.md

@@ -1,12 +1,7 @@
 <p align="center">
-    <img src="assets/logo_full_large.png" style="width: 60%" />
-    </br>
-    </br>
-    Simple
+    <img src="assets/logo_full_large.png" style="width: 60%" /><br/><br/>Simple
     <a href="https://github.com/nothings/stb/blob/master/docs/stb_howto.txt">STB-style</a>
-    cross-platform libraries for C and C++, written in C.
-    </br>
-    </br>
+    cross-platform libraries for C and C++, written in C.<br/><br/>
 </p>
 
 # Sokol