doppler: add page (#13345)

Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: spageektti <git@spageektti.cc>

pages/common/doppler-projects.md

@@ -0,0 +1,24 @@
+# doppler projects
+
+> Manage Doppler Projects.
+> More information: <https://docs.doppler.com/docs/cli>.
+
+- Get all projects:
+
+`doppler projects`
+
+- Get info for a project:
+
+`doppler projects get {{name|project_id}}`
+
+- Create a project:
+
+`doppler projects create {{name}}`
+
+- Update a project's name and description:
+
+`doppler projects update {{name|project_id}} --name "{{new_name}}" --description "{{new_description}}"`
+
+- Delete a project:
+
+`doppler projects delete {{name|project_id}}`