fix README.md

Author: Zordrak

README.md

@@ -54,13 +54,15 @@ bash:
 ```console
 echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.bash_profile
 ```
+
 zsh:
 ```console
 $ echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.zprofile
 ```
+
 fish:
 ```console
-$  echo 'set -x PATH $HOME/.tfenv/bin $PATH' >> ~/.config/fish/config.fish
+echo 'set -x PATH $HOME/.tfenv/bin $PATH' >> ~/.config/fish/config.fish
 ```
 
 For WSL users: