feat: add .nomad folder to .gitignore as keep

That .nomad folder is used to house nomad job files for continuous deployment pipelines.

Author: jacobheun

.gitignore

@@ -16,6 +16,7 @@
 !/knexfile.ts
 !/lib/
 !/migrations/
+!/.nomad/
 !/LICENSE*
 !/package.json
 !/README*

lib/content/gitignore

@@ -16,6 +16,7 @@
 !/knexfile.ts
 !/lib/
 !/migrations/
+!/.nomad/
 !/LICENSE*
 !/package.json
 !/README*