Apply suggestions from code review

Co-authored-by: Oleksii Filonenko <brightone@protonmail.com>

modules/lang/nix/README.org

@@ -14,9 +14,9 @@
 - [[#troubleshooting][Troubleshooting]]
 
 * Description
-Adds many tools for [[https://nixos.org/][nix(os)]] users in nice package for Doom users.
+Adds many tools for [[https://nixos.org/][Nix(OS)]] users in nice package for Doom users.
 
-+ Syntax highlight
++ Syntax highlighting
 + Completion through ~company~ / ~helm~
 + Nix option lookup
 + Formatting (~nixfmt~)
@@ -35,10 +35,10 @@ This module provides no flags.
 
 * Features
 + ~nixfmt~ is required to use formatting
-  + If you have nix(os) installed it can be installed trough nix configuration ~enviroment.systemPackages = with pkgs; [ nixfmt ];~ (recommended)
+  + If you have Nix(OS) installed it can be installed through Nix configuration ~environment.systemPackages = with pkgs; [ nixfmt ];~ (recommended)
-  + Or trough nix-env ~nix-env -iA nixpkgs.nixfmt~
+  + Or through nix-env ~nix-env -iA nixpkgs.nixfmt~
-  + Or trough nix-shell ~nix-shell -f https://github.com/serokell/nixfmt/archive/master.tar.gz -i~
+  + Or through nix-shell ~nix-shell -f https://github.com/serokell/nixfmt/archive/master.tar.gz -i~
-+ ~:editor format~ ~format-all~ also supports ~nixfmt~ so you can use that also to format nix code, default bindings ~SPC c f~ in evil.
++ ~:editor format~ ~format-all~ also supports ~nixfmt~ so you can use that also to format Nix code, default binding is ~SPC c f~ in evil.
 
 * Configuration
 | Binding           | Description          |
@@ -52,4 +52,4 @@ This module provides no flags.
 | ~<localleader> u~ | ~nix-unpack~         |
 
 * Troubleshooting
-+ There isn't any known problems.
++ There aren't any known problems.