propelauth: add page (#15995)

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>
Co-authored-by: Machiavelli <145562237+MachiavelliII@users.noreply.github.com>

pages/common/propelauth.md

@@ -0,0 +1,20 @@
+# propelauth
+
+> Set up PropelAuth authentication as quickly and easily as possible.
+> More information: <https://docs.propelauth.com/reference/api/cli>.
+
+- Login to PropelAuth using an API Key generated from <https://auth.propelauth.com/api_keys/personal>:
+
+`propelauth login`
+
+- Set the default PropelAuth Project for the CLI. If no default project is set, the system will prompt for selecting a Project each time certain commands are run:
+
+`propelauth set-default-project`
+
+- Install PropelAuth authentication in an application. If no directory is provided, the current directory is used:
+
+`propelauth setup {{[-f|--framework]}} {{path/to/directory}}`
+
+- Log the CLI out of PropelAuth:
+
+`propelauth logout`