diff --git a/README.md b/README.md
index 6497009..2ed0fbd 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,9 @@
 - [ ] RIP
 - [ ] PREFIX FILTERS
 - [ ] ASN's
+
+## _Mostly_ done
+- [X] Spanning tree
+
+## Considered done
+- [ ] ...
\ No newline at end of file