diff --git a/mail_activity_team/models/mail_activity_mixin.py b/mail_activity_team/models/mail_activity_mixin.py
index f141d285f..4d844e8a3 100644
--- a/mail_activity_team/models/mail_activity_mixin.py
+++ b/mail_activity_team/models/mail_activity_mixin.py
@@ -80,7 +80,7 @@ class MailActivityMixin(models.AbstractModel):
             date_deadline=date_deadline,
             summary=summary,
             note=note,
-            **act_values
+            **act_values,
         )
 
     @api.depends(
diff --git a/mail_activity_team/models/mail_activity_type.py b/mail_activity_team/models/mail_activity_type.py
index f6babceaa..73a2da784 100644
--- a/mail_activity_team/models/mail_activity_type.py
+++ b/mail_activity_team/models/mail_activity_type.py
@@ -5,7 +5,6 @@ from odoo import fields, models
 
 
 class MailActivityType(models.Model):
-
     _inherit = "mail.activity.type"
 
     default_team_id = fields.Many2one(comodel_name="mail.activity.team")
diff --git a/mail_activity_team/pyproject.toml b/mail_activity_team/pyproject.toml
new file mode 100644
index 000000000..4231d0ccc
--- /dev/null
+++ b/mail_activity_team/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/mail_activity_team/readme/CONTRIBUTORS.md b/mail_activity_team/readme/CONTRIBUTORS.md
new file mode 100644
index 000000000..7a9a07938
--- /dev/null
+++ b/mail_activity_team/readme/CONTRIBUTORS.md
@@ -0,0 +1,9 @@
+- [ForgeFlow](https://www.forgeflow.com):
+  - Jordi Ballester Alomar (<jordi.ballester@forgeflow.com>)
+  - Miquel Raïch (<miquel.raich@forgeflow.com>)
+  - Bernat Puig Font (<bernat.puig@forgeflow.com>)
+- Pedro Gonzalez (<pedro.gonzalez@pesol.es>)
+- [Tecnativa](https://www.tecnativa.com):
+  - David Vidal
+- [Dynapps](https://www.dynapps.eu):
+  - Raf Ven
diff --git a/mail_activity_team/readme/CONTRIBUTORS.rst b/mail_activity_team/readme/CONTRIBUTORS.rst
deleted file mode 100644
index 7216fd643..000000000
--- a/mail_activity_team/readme/CONTRIBUTORS.rst
+++ /dev/null
@@ -1,12 +0,0 @@
-* `ForgeFlow <https://www.forgeflow.com>`_:
-
-  * Jordi Ballester Alomar (jordi.ballester@forgeflow.com)
-  * Miquel Raïch (miquel.raich@forgeflow.com)
-  * Bernat Puig Font (bernat.puig@forgeflow.com)
-* Pedro Gonzalez (pedro.gonzalez@pesol.es)
-* `Tecnativa <https://www.tecnativa.com>`_:
-
-  * David Vidal
-* `Dynapps <https://www.dynapps.eu>`_:
-
-  * Raf Ven
diff --git a/mail_activity_team/readme/DESCRIPTION.rst b/mail_activity_team/readme/DESCRIPTION.md
similarity index 100%
rename from mail_activity_team/readme/DESCRIPTION.rst
rename to mail_activity_team/readme/DESCRIPTION.md
diff --git a/mail_activity_team/readme/USAGE.md b/mail_activity_team/readme/USAGE.md
new file mode 100644
index 000000000..46d49d407
--- /dev/null
+++ b/mail_activity_team/readme/USAGE.md
@@ -0,0 +1,16 @@
+To set up new teams:
+
+1.  Go to *Settings / Activate developer mode*
+2.  Go to *Settings / Technical / Email / Activity Teams*
+3.  Create a new Team and assign (optionally) the models in which it
+    will be used, and the members of the team.
+
+You can also assign a user to Activity teams going to *Settings / Users
+& Companies / Users*, and in the *Preferences* tab, field Activity
+Teams.
+
+When you create a new activity the application will propose the user's
+assigned team.
+
+You can report on the activities assigned to a team going to *Dashboards
+/ Activities*, and then filter by a specific team or group by teams.