feat: framed messages tutorial (#119)

* WIP: framed messages tutorial

* Implement framing using `tokio_util::codec`

* Commit missing file

* Write README

* Also check the `framed-messages` example

* code review

---------

Co-authored-by: Philipp Krüger <[email protected]>

Author: b5

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ env:
   RUSTFLAGS: -Dwarnings
   RUSTDOCFLAGS: -Dwarnings
   MSRV: "1.81"
-  RS_EXAMPLES_LIST: "dumbpipe-web,extism/host,extism/iroh-extism-host-functions,extism/plugin,iroh-automerge,iroh-gateway,frosty,browser-echo"
+  RS_EXAMPLES_LIST: "dumbpipe-web,extism/host,extism/iroh-extism-host-functions,extism/plugin,iroh-automerge,iroh-gateway,frosty,browser-echo,framed-messages"
   WASM_EXAMPLES_LIST: "browser-echo"
   IROH_FORCE_STAGING_RELAYS: "1"
 

README.md

@@ -24,6 +24,10 @@ Forward http requests to dumbpipe. Share a local dev server publicly.
 
 Use iroh through [extism]
 
+### [framed messages](framed-messages)
+
+Send chess moves back and forth on the same bi-directional stream by framing it using `tokio-util`'s `codec` feature.
+
 ### [frosty](frosty)
 
 Experiment with [FROST] threshold signatures for iroh.