diff --git a/contribution-branching-model.websequence b/contribution-branching-model.websequence
new file mode 100644
index 0000000..f388565
--- /dev/null
+++ b/contribution-branching-model.websequence
@@ -0,0 +1,17 @@
+#https://www.websequencediagrams.com/
+develop->rfc_my-first-rfc: Start RFC (create branch)
+rfc_my-first-rfc->rfc_my-first-rfc: Work on change/create 
+rfc_my-first-rfc->contribution_another-edit-in-this-rfc: Start contribution (create branch)
+contribution_another-edit-in-this-rfc->contribution_another-edit-in-this-rfc: Work on change
+contribution_another-edit-in-this-rfc->rfc_my-first-rfc: Publication: create MR assign to original RFC's owner
+rfc_my-first-rfc->contribution_another-edit-in-this-rfc: Accept/Refuse (delete contribution branch)
+destroy contribution_another-edit-in-this-rfc
+rfc_my-first-rfc->develop: Publication: create MR assign to dev-leader
+develop->rfc_my-first-rfc: Accept/Refuse (delete rfc branch)
+destroy rfc_my-first-rfc
+develop->editorial_my-first-editorial-contribution: Start editorial change (create branch)
+editorial_my-first-editorial-contribution->editorial_my-first-editorial-contribution: Work on change
+editorial_my-first-editorial-contribution->develop: Publication: create MR assign to itself or dev-head
+develop->editorial_my-first-editorial-contribution: Accept/refuse (delete editorial branch)
+destroy editorial_my-first-editorial-contribution
+develop->master: Publication (MR into master branch by dev-leader only)
--
libgit2 0.21.2