feat: a lot of stuff

users/gandalf/modules/neovim/default.nix

@@ -9,12 +9,12 @@
 
   home.packages = with pkgs; [
     tree-sitter # parser generator tool and an incremental parsing library
-    lua-language-server
-    clang-tools
-    rust-analyzer
-    rustfmt
-    gopls
-    nixd
+    lua-language-server # language server that offers lua language support
+    clang-tools # standalone command line tools for c++ development
+    rust-analyzer # modular compiler frontend for the rust language
+    rustfmt # tool for formatting rust code according to style guidelines
+    gopls # official language server for the go language
+    nixd # nix language server
     nodePackages.pyright # type checker for the python language
     ruff # an extremely fast python linter
     black # uncompromising python code formatter
@@ -27,6 +27,9 @@
     texlab # implementation of the language server protocol for latex
     yamlfmt # extensible command line tool or library to format yaml files
     yamlfix # python yaml formatter that keeps your comments
+    marksman # language server for markdown
+    markdownlint-cli2 # fast, flexible, configuration-based command-line interface for linting markdown/commonmark files with the markdownlint library
+    mdformat # commonmark compliant markdown formatter
   ];
 
   programs.neovim = {