Add docs for process types

docs/en/modules/ROOT/nav.adoc

@@ -64,6 +64,7 @@
 **** xref:admin:spaces/processes/private_participants.adoc[Private participants]
 **** xref:admin:spaces/processes/moderations.adoc[Moderations]
 **** xref:admin:spaces/processes/groups.adoc[Process Groups]
+**** xref:admin:spaces/processes/types.adoc[Process Types]
 *** xref:admin:spaces/assemblies.adoc[Assemblies]
 **** xref:admin:spaces/assemblies/components.adoc[Components]
 **** xref:admin:spaces/assemblies/categories.adoc[Categories]

docs/en/modules/admin/pages/spaces/processes/types.adoc

@@ -0,0 +1,40 @@
+= Process types
+
+In some cases it is necessary to organize participatory processes by more than just xref:spaces/processes/groups.adoc[Process Groups]. This is where Process Types can be useful.
+
+Process Types work similarly to xref:admin:spaces/assemblies.adoc#_assemblies_types[Assembly types].
+
+== New process type form
+
+For creating a new process type:
+
+. Sign in as administrator
+. Go to the Processes section in the sidebar
+. Click on the Process types link in the sidebar
+. Click on the "New process type" button
+. Fill in the form
+
+image:spaces/processes/process-types-admin-backend.png[A screenshot of the back-end showing the button to create a new process type,title="Create a new process type in the back-end"]
+
+.New participatory process type form: General information
+|===
+|Field |Type |Description
+
+|Title
+|Required
+|Title of the participatory process type. For instance, "Consultative".
+
+|===
+
+== Add process type to existing processes
+
+It's possible to add a process type to existing processes. Edit the process, and select the process type under the section labelled Other.
+
+image:spaces/processes/process-types-edit-process.png[A screenshot of editing an existing process to add a process type,title="Add process type to an existing process"]
+
+== Process type filter
+
+In the front-end if there is at least one Process Type defined, a filter shows, allowing filtering of Processes.
+
+image:spaces/processes/process-types-front-end.png[A screenshot of the front-end showing a filter for Process types,title="Front-end filter for Process Types"]
+