ha-school: Fix indentation.

content/posts/home-automation-at-school/index.md

@@ -181,7 +181,7 @@ Note that the display doesn't respond to being turned back on, so this is somewh
 The corresponding portion of the config for `ha-mqtt-iot` looks like the following:
 
 ```json
-    "lights": [
+"lights": [
     {
         "info": {
             "name": "Desktop Monitor",
@@ -214,7 +214,7 @@ The corresponding portion of the config for `ha-mqtt-iot` looks like the followi
         "brightness_scale": 100,
         "update_interval": 5
     }
-    ]
+]
 ```
 
 Pretty simple.
@@ -222,7 +222,7 @@ This makes custom system sensors trivial.
 For example, to show my system IP, I use the following:
 
 ```json
-    "sensors": [
+"sensors": [
     {
         "info": {
             "name": "IP Address Desktop Solus",
@@ -236,7 +236,7 @@ For example, to show my system IP, I use the following:
         ],
         "update_interval": 10
     }
-    ]
+]
 ```
 
 Some common use cases are built in as well.
@@ -245,7 +245,7 @@ These are really easy to call.
 An exhaustive example is quite short:
 
 ```json
-    "builtin": {
+"builtin": {
     "prefix": "Name Prefix ",
     "backlight": {
         "enable": true,
@@ -266,7 +266,7 @@ An exhaustive example is quite short:
             "icon": "mdi:currency-usd"
         }
     ]
-    }
+}
 ```
 
 This lets me tailor my setup to each machine I'm using, while still enjoying the benefits of Home Assistant MQTT Discovery.
@@ -283,7 +283,7 @@ I have configured on my VPS a docker image that accepts reverse SSH tunnelling,
 From my `docker-compose.yml`:
 
 ```yaml
-  homeassistant:
+homeassistant:
     image: "docker.io/panubo/sshd"
     container_name: homeassistant
     environment: