Update README.md

README.md

@@ -400,7 +400,7 @@ This project is released under the [MIT License](link-to-license).
 
 ## Appendix
 ### Why Nix Flakes
-Reasons to jump into flakes and skip `nix-env`, Nix channels, etc:
+**Reasons to jump into flakes and skip `nix-env`, Nix channels, etc**
 - Channels lock all packages to one big global `nixpkgs` version. Flakes lock each package to specific versions, which is a higher level of precision and reproducibility compared to channels
 - Flakes work just like other package managers-- `npm`, `cargo`, `poetry`, `composer`, etc.
 - Flakes encapsulate not just project dependencies, but Nix expressions, Nix apps, and other configurations in a single file