Add member list flags

docs/content/tips-and-tricks.md

@@ -24,4 +24,40 @@ PluralKit has a couple of useful command shorthands to reduce the typing:
 |pk;member new|pk;m n|
 |pk;switch|pk;sw|
 |pk;message|pk;msg|
-|pk;autoproxy|pk;ap|
+|pk;autoproxy|pk;ap|
+
+## Member list flags
+There are a number of option flags that can be added to the `pk;system list` command.
+
+### Sorting options
+|Flag|Aliases|Description|
+|---|---|---|
+|-by-name|-bn|Sort by member name (default)|
+|-by-display-name|-bdn|Sort by display name|
+|-by-id|-bid|Sort by member ID|
+|-by-message-count|-bmc|Sort by message count (members with the most messages will appear near the top)|
+|-by-created|-bc|Sort by creation date (members least recently created will appear near the top)|
+|-by-last-fronted|-by-last-front, -by-last-switch, -blf, -bls|Sort by most recently fronted|
+|-by-last-message|-blm, -blp|Sort by last message time (members who most recently sent a proxied message will appear near the top)|
+|-by-birthday|-by-birthdate, -bbd|Sort by birthday (members whose birthday is in January will appear near the top)|
+|-reverse|-rev, -r|Reverse previously chosen sorting order|
+|-random||Sort randomly|
+
+### Filter options
+|Flag|Aliases|Description|
+|---|---|---|
+|-all|-a|Show all members, including private members|
+|-public-only|-public, -pub|Only show public members (default)|
+|-private-only|-private, -priv|Only show private members|
+
+::: warning
+You cannot look up private members of another system.
+:::
+
+### Additional fields to include in the search results
+|Flag|Aliases|Description|
+|---|---|---|
+|-with-last-switch|-with-last-fronted, -with-last-front, -wls, -wlf|Show each member's last switch date|
+|-with-last-message|-with-last-proxy, -wlm, -wlp|Show each member's last message date|
+|-with-message-count|-wmc|Show each member's message count|
+|-with-created|-wc|Show each member's creation date|