Update README.md

Author: wenhuizhang

README.md

@@ -18,7 +18,7 @@ Just
 wget https://github.com/JavaScriptBench/graaljs/releases/download/vm-21.1.0/graalvm-ce-java16-linux-amd64-21.2.0.tar.gz
 tar -xvf graalvm-ce-java16-linux-amd64-21.2.0.tar.gz
 ~/graalvm-ce-java16-21.2.0/languages/js/bin/js test.js 
-~/graalvm-ce-java16-21.2.0/languages/js/bin/js ./js --vm.D:-UseJVMCICompiler test.js 
+~/graalvm-ce-java16-21.2.0/languages/js/bin/js  --vm.D:-UseJVMCICompiler test.js 
 ~/graalvm-ce-java16-21.2.0/languages/js/bin/js --vm.D:-EnableJVMCI test.js
 ```