Add more details to deployment instructions

This should reduce confusion for users less familiar with such a
stack, as was encountered in LostLuma#1.

README.md

@@ -1,20 +1,24 @@
 # Starbin
 
-A hastebin-compatible paste site running on Cloudflare Workers.
+A hastebin-compatible paste site running on Cloudflare Workers / Pages.
 
 # Deployment
 
-To deploy as a pages project you will need to set up the following:
-
-KV namespace bindings:
-
-- ``STORAGE``: A KV namespace to store pastes in
-
-Environment variables:
-
-- ``DOCUMENT_KEY_SIZE``: Number of digits to use for document URLs
-- ``MAX_DOCUMENT_SIZE``: Maximum number of characters allowed per paste
-- ``DOCUMENT_EXPIRE_TTL``: Number of seconds until documents expire
+To deploy as a Pages project you will need to follow these steps:
+
+- Fork this repo to an account where you can install GitHub Apps
+- Create an empty KV namespace to store pastes in on the Workers dashboard
+- Create a new Pages project using the Git integration and your forked repo
+  - Set an empty ``echo`` command as the build command - no actual build is performed
+  - Set the build output directory to ``/static/`` to allow Pages to find the website
+- Under the project's settings in the Functions tab set up a new KV namespace binding
+  - Set the variable name to ``STORAGE``, the namespace to the namespace from earlier
+- Under the project's Environment Variables settings set up the following variables:
+  - ``DOCUMENT_KEY_SIZE``: Number of digits to use for document URLs
+  - ``MAX_DOCUMENT_SIZE``: Maximum number of characters allowed per paste
+  - ``DOCUMENT_EXPIRE_TTL``: Number of seconds until documents expire
+
+And that's it! You may now set a custom domain if you'd like the site to be available outside of workers.dev
 
 # TODO