doc: added procedure to modify committee members

src/procedures/skynet/committee_modify.md

@@ -0,0 +1,48 @@
+# Change Committee Members
+This page covers the adding and removing of UL Computer Society committee members.  
+
+## Adding
+Before starting the committee member in question *must* have a Skynet Account.   
+This is because we have several services that require authentication to access.  
+Details on how to create one can be found [here][skynet_account_creation].  
+
+Once they have an account add their username to [``users.nix``][users.nix].  
+Then commit and push.
+
+Once everything is deployed they should have access to all resources within 15 min.
+If you require it sooner than that see the [Force Update](#force-update) section below.
+
+Next checkout the page on [VaultWarden](./vaultwarden.md) to add the user to the password manager.
+
+## Removing
+Removing is essentially the same as adding.
+
+Remove their username to [``users.nix``][users.nix].  
+Then commit and push.
+
+## Force Update
+If you need to hasten an update you can log into teh server to give it a (virtual) kick.
+
+### SSH into Kitt  
+Kit is teh home of the user accounts.
+```shell
+ssh root@kitt.skynet.ie
+```
+### Once attached run these commands  
+```shell
+# reboot the main process
+systemctl reboot skynet_ldap_backend.service
+
+# Update the data (this ensures that folks are current members)
+systemctl reboot skynet_ldap_backend-update_data.service
+
+# Apply the new group roles
+systemctl reboot skynet_ldap_backend-update_groups.service
+```
+### Exit the terminal.  
+```shell
+quit
+```
+
+[skynet_account_creation]: ../../tutorials/skynet/create_account.md
+[users.nix]: https://forgejo.skynet.ie/Skynet/nixos/src/branch/main/config/users.nix#L52