fix codeblocks on user-units wiki page

wiki/pages/user-units.md

@@ -13,32 +13,30 @@ so you've got a process that you want to keep running. you might have it in a
 tmux or screen session. let's use systemd user units to manage it!
 
 1. ensure that your user unit loadpath is set up:
-```bash
+
-mkdir -p ~/.config/systemd/user/
+        mkdir -p ~/.config/systemd/user/
-```
 
 1. create a basic service. save something like this in 
-`~/.config/systemd/user/my-new-service.service` (adjusting where necessary)
+`~/.config/systemd/user/my-new-service.service` (using the name of the unit 
-```bash
+you're creating)
-[Unit]
-Description=foo
 
-[Service]
+        [Unit]
-ExecStart=/bin/bash -c "while true do; echo hi; done"
+        Description=foo
 
-[Install]
+        [Service]
-WantedBy=default.target
+        ExecStart=/bin/bash -c "while true do; echo hi; done"
-```
+
+        [Install]
+        WantedBy=default.target
 
 1. enable it
-```bash
+
-systemctl --user enable --now my-new-service.service
+        systemctl --user enable --now my-new-service.service
-```
 
 1. enable-linger for your user account
-```bash
+
-loginctl enable-linger
+        loginctl enable-linger
-```
+
 this allows your user units to run even when you're not logged in.
 
 done!