Update readme

README.md

@@ -44,7 +44,7 @@ At present, the program has practical applications in ```AIX```, ```UNIX```, ```
 
     -a option:  Anti forgery interpreter requires the MD5 value of the interpreter in the runtime environment to be the same as that of the interpreter in the compilation environment.
 
-    -x option： The script file is a binary file generated by [xbash](https://github.com/chenzhch/xbash). 
+    -x option： The script file is a non shebang binary file generated by [xbash](https://github.com/chenzhch/xbash). 
 
     -f option： Fix parameter 0 value.