[doc]fix the rest of exwm readme hls

layers/+window-management/exwm/README.org

@@ -35,12 +35,12 @@ more awesome, so if you try it and like it, share it!
 ** Features:
 - Support for using Spacemacs as window manager
 
-** Install
+* Install
 To use this configuration layer, add it to your =~/.spacemacs=. You will need to
 add =exwm= to the existing =dotspacemacs-configuration-layers= list in this
 file.
 
-*** Note about Display Managers
+** Note about Display Managers
 This is most common among Ubuntu and derivative users:
 
 LightDM, GDM, and other Display managers that need a session file will need you
@@ -50,17 +50,17 @@ make sure the [[file:files/exwm-start][exwm-start script]] is in your PATH, you
 ~/usr/local/bin/exwm-start~ and that should be enough, next time you log out,
 select the EXWM session instead of the Ubuntu one and you should be alright.
 
-*** Not having Display Managers
+** Not having Display Managers
 If you use Arch, Gentoo, or any other Linux, most probably you'll start your
 configurations via a ~.xinitrc~ file, just append ~exwm-start~ to the end of
 that file and you should be fine. I do recommend to check the [[https://github.com/ch11ng/exwm/wiki][EXWM Wiki]] for more
 details.
 
-*** OSX
+** OSX
 If you are an OSX user, please report back on whether this works with xQuartz,
 always back up your data before attempting to try stuff like this.
 
-** Key bindings
+* Key bindings
 As other window managers the ~s~ or *Super* key (Windows Key) is the one that
 is the prefix to every action. We'll use a lot of ~s~.