update server setup steps

readme.md

@@ -3,4 +3,9 @@
 ### Assumptions
 <ul>
 <li>You're connected to wired internet</li>
-</ul
+</ul>
+
+### Setup Steps
+1. Flash NixOS onto the server hardware
+2. Create a sudo password for root
+3. Run nixos anwhere command to install repo config: ```nix Command```