Added a note if the user uses gpg2 as opposed to gpg

Some distros (Void Linux) use gnupg2 by default instead of gnupg. The script does not take this into account, and can be solved by creating a symlink between gpg2 and gpg.

README.md

@@ -32,6 +32,24 @@ User of Arch-based distros can also install mutt-wizard from the AUR as [mutt-wi
 rm -rf ~/.config/mutt ~/.msmtprc ~/.config/msmtp ~/.offlineimap ~/.offlineimaprc ~/.config/offlineimap ~/.mbsyncrc
 ```
 
+*NOTE:* If you are using gpg2, you will have to use a symlink to associate gpg2 with gpg. You can check your gpg version with:
+
+```
+gpg --version
+```
+
+or
+
+```
+gpg2 --version
+```
+
+and then use:
+
+```
+sudo ln -s /usr/bin/gpg2 /usr/bin/gpg
+```
+
 The mutt-wizard is run with the command `mw`. It also installs the `mailsync` command. Once everything is setup, you'll use `neomutt` to access your mail.
 
 - `mw add` -- add a new email account