doc/mode-button: create code block with indention

doc/mod/ssh-keys-import.md

@@ -51,12 +51,10 @@ The functions `$SSHKeysImportFile` can read an `authorized_keys`-style file
 and import all the keys. The user given to the function can be overwritting
 from comments in the file. Create a file `keys.pub` with this content:
 
-```
+    ssh-ed25519 AAAAC3Nza...3OcN8A user@client
-ssh-ed25519 AAAAC3Nza...3OcN8A user@client
+    ssh-rsa AAAAB3Nza...ozyts= worker@station
-ssh-rsa AAAAB3Nza...ozyts= worker@station
+    # user=example
-# user=example
+    ssh-rsa AAAAB3Nza...GXQVk= person@host
-ssh-rsa AAAAB3Nza...GXQVk= person@host
-```
 
 Then import it with:
 

doc/mode-button.md

@@ -26,17 +26,15 @@ can configure the reset button to act the same, see
 
 Copy this code to terminal to check:
 
-```
+    :if ([ :len [ /system/routerboard/mode-button/print as-value ] ] > 0) do={
-:if ([ :len [ /system/routerboard/mode-button/print as-value ] ] > 0) do={
+      :put "Mode button is supported.";
-  :put "Mode button is supported.";
+    } else={
-} else={
+      :if ([ :len [ /system/routerboard/reset-button/print as-value ] ] > 0) do={
-  :if ([ :len [ /system/routerboard/reset-button/print as-value ] ] > 0) do={
+        :put "Mode button is not supported, but reset button is.";
-    :put "Mode button is not supported, but reset button is.";
+      } else={
-  } else={
+        :put "Neither mode button nor reset button is supported.";
-    :put "Neither mode button nor reset button is supported.";
+      }
-  }
+    }
-}
-```
 
 Requirements and installation
 -----------------------------