docs: rewrite info about installation/setup of acme.sh on MyDevil.net

dnsapi/README.md

@@ -1267,13 +1267,7 @@ Make sure that you can execute own binaries:
 devil binexec on
 ```
 
-Install acme.sh somewhere on your mydevil host account, probably in your home directory.
-Once it is installed, add it to your `~/bin` directory (and make sure it exists first):
-
-```sh
-mkdir ~/bin
-ln -s /path/to/installed/directory/of/.acme.sh/acme.sh ~/bin/acme.sh
-```
+Install acme.sh, or simply `git clone` it into some directory on your MyDevil host account (in which case you should link to it from your `~/bin` directory).
 
 If you're not using private IP and depend on default IP provided by host, you may want to edit `crontab` too, and make sure that `acme.sh --cron` is run also after reboot (you can find out how to do that on their wiki pages).