update work profile readme with link to chris' github profile

.example_work_profile/README.md

@@ -1,6 +1,6 @@
 # Work profile overlay
 
-_Inspired by [Published my Nix Dotfiles](https://www.chrisportela.com/posts/published-nix-dotfiles/)._
+_Inspired by the post [Published my Nix Dotfiles](https://www.chrisportela.com/posts/published-nix-dotfiles/) by [@chrisportela](https://github.com/chrisportela)._
 
 This repo demonstrates how I use a private repo to overlay my work-specific configurations on top of my personal ones. To use it, I just:
 1. Clone the private repo to my machine.

.example_work_profile/work_overrides/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }: {
+{ pkgs, config, ... }: {
   imports = [
     ./fish.nix
   ];

.example_work_profile/work_overrides/fish.nix

@@ -9,5 +9,9 @@
       sshroot = "ssh -i ~/.ssh/id_ed25519-root -l root";
       vpnkit = "wsl.exe -d wsl-vpnkit --cd /app service wsl-vpnkit";
     };
+
+    functions = {
+      update-dotfiles = "nix flake lock --update-input dotfiles ${config.home.homeDirectory}/.dotfiles/ && switch-home";
+    };
   };
 }