treewide: Fix all Nix ASTs in all markdown files

This allows for correct highlighting and maybe future automatic
formatting. The AST was verified to work with nixfmt only.

1 files changed, 5 insertions, 1 deletions

diff --git a/doc/languages-frameworks/crystal.section.md b/doc/languages-frameworks/crystal.section.md
index b97e75a58da11..9953f357048ae 100644
--- a/doc/languages-frameworks/crystal.section.md
+++ b/doc/languages-frameworks/crystal.section.md
@@ -33,22 +33,26 @@ crystal.buildCrystalPackage rec {
   # Insert the path to your shards.nix file here
   shardsFile = ./shards.nix;
 
-  ...
+  # ...
 }
 ```
 
 This won't build anything yet, because we haven't told it what files build. We can specify a mapping from binary names to source files with the `crystalBinaries` attribute. The project's compilation instructions should show this. For Mint, the binary is called "mint", which is compiled from the source file `src/mint.cr`, so we'll specify this as follows:
 
 ```nix
+{
   crystalBinaries.mint.src = "src/mint.cr";
 
   # ...
+}
 ```
 
 Additionally you can override the default `crystal build` options (which are currently `--release --progress --no-debug --verbose`) with
 
 ```nix
+{
   crystalBinaries.mint.options = [ "--release" "--verbose" ];
+}
 ```
 
 Depending on the project, you might need additional steps to get it to compile successfully. In Mint's case, we need to link against openssl, so in the end the Nix file looks as follows: