Update docs (#4)

* Add missing discord for Paul

* Add more readme dogs

README.md

@@ -1,25 +1,34 @@
 # slatedb-pulumi
 
-Pulumi scripts to manage SlateDB committer access to various infrastructure resources.
+Pulumi scripts to manage SlateDB committer access to:
 
-## Pulumi State
+- Github
+- Discord
+- Crates.io
 
-The Pulumi state is stored in Pulumi Cloud. The state is stored in the `slatedb` organization. The state is stored in the `slatedb-pulumi/prod` stack.
+Users must still be manually added to [SlateDB's Pulumi cloud organization](https://app.pulumi.com/slatedb/members). The Pulumi state is stored in Pulumi Cloud. The state is stored in the `slatedb` organization. The state is stored in the `slatedb-pulumi/prod` stack.
 
 ## Environment Variables
 
 The following environment variables must be set:
 
+### `PULUMI_ACCESS_TOKEN`
+
+A Pulumi Cloud access token is used to authenticate with Pulumi Cloud. The Pulumi access token can be created in the [organization access tokens](https://app.pulumi.com/slatedb/settings/org-tokens) page.
+
 ### `CARGO_REGISTRY_TOKEN`
 
 Can be created from https://crates.io/settings/tokens.
 
 ### `DISCORD_TOKEN`
 
-Can be created from https://discord.com/developers.
+Can be created from https://discord.com/developers. The Github actions in this repository use [@criccomini](https://github/criccomini)'s Discord bot. If you ever need to create your own Discord bot, you can do so by following these instructions:
+
+1. Create a Discord bot. (follow [these inscrutions](https://discordpy.readthedocs.io/en/stable/discord.html))
+2. Add the discord bot to SlateDB with the appropriate permissions. (follow [these instructions](https://stackoverflow.com/questions/50942405/discord-js-unknown-guild-when-removing-all-roles-from-a-user))
 
 ### `GITHUB_TOKEN`
 
 Can be created from https://github.com/settings/tokens?type=beta.
 
-Github will fill this environment variable in automatically when you run a workflow. Make sure the workflow has the appropriate permissions to grant users ownership of the `slatedb` Github orgnaization and its repositories.
+The Github actions in this repository use [@criccomini](https://github/criccomini)'s personal access token to grant users access to the `slatedb` Github organization. (Github does not allow the use of Github tokens in Github actions to grant users access to an organization.)

__main__.py

@@ -34,7 +34,7 @@ class Maintainer:
     # Maintainer(
     #     name="Paul Butler",
     #     github="paulgb",
-    #     discord="",
+    #     discord="534035699565854720",
     # ),
     # Maintainer(
     #     name="Li Yazhou",