Update README.md

Author: thesyncim

README.md

@@ -15,7 +15,7 @@ go get -u github.com/gonowa/wasm-opt
 ```
 
 # known issues
-bugs should be reported at https://github.com/WebAssembly/binaryen/issues, after all this is just a thin wrapper arround wasm-opt
+bugs should be reported at https://github.com/WebAssembly/binaryen/issues, after all, this is just a thin wrapper arround wasm-opt
  * core dump or segmentation fault ( try to run with -d option)
 
 # usage