doc: tweak protocols ascii art
diff --git a/doc/protocols_around_hnbgw.txt b/doc/protocols_around_hnbgw.txt
index a72bc54..5af2623 100644
--- a/doc/protocols_around_hnbgw.txt
+++ b/doc/protocols_around_hnbgw.txt
@@ -1,17 +1,15 @@
-Who Talks What Around the Home Node B Gateway
-=============================================
-(wip 2016-01-11)
-
+Protocols Around the Home Node B Gateway
+========================================
 
         +------------+           +--------+          +----------+
  UE <-->| hNodeB     |<--Iuh---->| HNB-GW |<--IuCS-->| OsmoCSCN |
- UE <-->| femto cell |     ...-->|        |          +----------+
-        |            |           |        |
+ UE <-->| femto cell |     ...-->|        |    ...-->|          |
+        |            |           |        |          +----------+
         +------------+<--GTP-U   |        |
                               \  |        |          +------+           +------+
                               |  |        |<--IuPS-->| SGSN |<--GTP-C-->| GGSN |
-                              |  +--------+          +------+   GTP-U-->|      |
-                              |                                /        +------+
+                              |  +--------+    ...-->|      |   GTP-U-->|      |
+                              |                      +------+  /        +------+
                               \_______________________________/