docs: Fix scrolling behaviour

By adding language to a codeblock

Author: srid

doc/debugging.md

@@ -10,7 +10,7 @@ Passing `--trace-verbose` to Nix commands causes haskell-flake to print verbose
 
 The below is a sample output when building [haskell-multi-nix](https://github.com/srid/haskell-multi-nix/tree/debug) with `--trace-verbose`:
 
-```
+```text
 $ nix --no-eval-cache build -L --trace-verbose github:srid/haskell-multi-nix 2>&1 | ts '[%H:%M:%S]'
 [22:45:38] trace: DEBUG[haskell-flake] [haskell-multi-nix#haskellProjects.default]: default.findPackagesInCabalProject = {"bar":"/nix/store/5zvwxw2n801bbjcz3685dp20y8afjmld-source/./bar","foo":"/nix/store/5zvwxw2n801bbjcz3685dp20y8afjmld-source/./foo"}
 [22:45:38] trace: DEBUG[haskell-flake] [haskell-multi-nix#haskellProjects.default]: defaults.packages = {"bar":{"imports":[{"_file":"/nix/store/sv90dpz2fgn93kvzc14szqn77wvjssv0-source/nix/modules/project/defaults.nix, via option perSystem.aarch64-darwin.haskellProjects.default.defaults.packages.bar","imports":[{"source":"/nix/store/5zvwxw2n801bbjcz3685dp20y8afjmld-source/./bar"}]}]},"foo":{"imports":[{"_file":"/nix/store/sv90dpz2fgn93kvzc14szqn77wvjssv0-source/nix/modules/project/defaults.nix, via option perSystem.aarch64-darwin.haskellProjects.default.defaults.packages.foo","imports":[{"source":"/nix/store/5zvwxw2n801bbjcz3685dp20y8afjmld-source/./foo"}]}]}}

doc/index.yaml

@@ -10,15 +10,6 @@ template:
   # You can add your own variables here, like editBaseUrl.
   # See after-note.tpl to see where editBaseUrl gets used.
   editBaseUrl: https://github.com/srid/haskell-flake/edit/master/doc
-
-  # Uncomment this to get neuron-style pages
-  # name: /templates/layouts/note
-  # layout:
-  #   note:
-  #     containerClass: container mx-auto max-w-screen-lg
-
   sidebar:
     collapsed: false
-
-  # If you are hosting on GitLab Pages, you may want to remove this.
   urlStrategy: pretty