update readme

Author: jashan-lco

templates/app-repo/README.md

@@ -0,0 +1,46 @@
+# app-name
+
+One line blurb about what this application does.
+
+More information about this app.
+
+## Development
+
+### Shell
+
+Always enter the development shell before doing anything else. This will make
+sure everyone is using the same version of tools, to avoid any system discrepancies.
+
+Install [Nix](https://github.com/LCOGT/public-wiki/wiki/Install-Nix) if you have
+not already.
+
+If you have [direnv](https://github.com/LCOGT/public-wiki/wiki/Install-direnv)
+installed, the shell will automatically activate and deactive anytime you change
+directories. You may have to grant permissions initially with:
+
+```sh
+direnv allow
+```
+
+Otherwise, you can manually enter the shell with:
+
+```sh
+./develop.sh
+```
+
+### Skaffold
+
+Deploy application dependencies:
+
+```sh
+skaffold -m <app>-deps run
+```
+
+Start application development loop:
+
+```sh
+skaffold -m <app> dev
+```
+
+If there are any Ingresses, they should be exposed at:
+  - http://<app>.local.lco.earth