Update docs

README.md

@@ -196,9 +196,7 @@ Option completion scripts for Bash, Fish and Zsh can be found in respective subd
 
 1. Install the [utilities required](#utility-dependencies) for your regular activities.
 2. Configure [cd on quit](https://github.com/jarun/nnn/wiki/hacking-nnn#cd-on-quit).
-3. Optionally open all text files in EDITOR (fallback vi):
-
-       export NNN_USE_EDITOR=1
+3. Optionally open all text files in EDITOR (fallback vi): `export NNN_USE_EDITOR=1`
 4. Run `n`.
 5. To use `nnn` as a GUI app launcher with fuzzy selection menu, drop [`nlaunch`](https://github.com/jarun/nnn/blob/master/user-scripts/nlaunch) somewhere in your `$PATH`.
 6. Don't memorize keys. Arrows, <kbd>/</kbd> and <kbd>q</kbd> suffice. Press <kbd>?</kbd> for help on keyboard shortcuts anytime.