Added a diagram

scraps/idea--persistent-chat-client-diagram

@@ -0,0 +1,22 @@
+id: 'idea--persistent-chat-client-diagram'
+content: |
+  Diagrammatically:
+
+      +--------+  +-------+  +-----+
+      | jabber |  | gchat |  | irc |
+      +--------+  +-------+  +-----+
+           |          |         |
+           +---------+++--------+
+                     |||
+                 +----------+
+                 | [server] |
+                 +----------+
+                      |
+                 +----------+
+                 |  client  |
+                 +----------+
+
+  ...ish, anyway.
+related:
+  - name: idea--persistent-chat-client
+    why: the basic idea