Updated README.md to have the correct path to bfa/bin/env

README.md

@@ -8,7 +8,7 @@
    - For Ubuntu read doc/installing-geth-on-ubuntu.txt
 2. `sudo apt install jq ncurses-bin curl`
 3. `git clone https://github.com/rlegene/bfa.git`
-4. `source ${HOME}/bfa/bin`
+4. `source ${HOME}/bfa/bin/env`
    - You can include this line in your .bash_profile if you want.
    - It is perfectly safe to source it multiple times.
 5. Install this crontab: `@reboot bfa/bin/cron.sh`