Update README.MD

SecureCRT.SecureFX/README.MD

@@ -4,3 +4,13 @@ echo "[ -f \$HOME/.bashrc ] && source \$HOME/.bashrc" >$HOME/.zshrc
 echo "export LANG=zh_CN.UTF-8" >$HOME/.bashrc
 
 ```
+
+# download
+```
+https://www.vandyke.com/cgi-bin/download_form_1.php?pid=scrt_sfx_mac_arm64_952
+md5: e8bd4b325a78f695aefb8885d3660fdd
+
+https://www.vandyke.com/cgi-bin/download_form_1.php?pid=scrt_sfx_macx64_952
+md5: 21a34ab9d1ceeffe8294582c8f12c402
+
+```