doc: add project example to readme

Makefile

@@ -5,7 +5,8 @@ NPM_PUB := npm publish
 
 D2 := nix run git+https://git.pleshevski.ru/mynix/tools\\\#d2 --
 DIAGRAMS := \
-	turnstile
+	turnstile \
+	project
 
 turnstile_theme_args := --layout elk --theme 101
 

README.md

@@ -26,7 +26,7 @@ const sm = new StateMachineBuilder()
   .build(locked);
 ```
 
-You can find the full example in the [examples](./examples/) folder.
+You can find more examples [here](./examples/README.md)
 
 # Installation
 

assets/project.d2

@@ -0,0 +1,26 @@
+direction: right
+
+Project: {
+  pen: Pending {
+    shape: circle
+  }
+  act: Active {
+    shape: circle
+    style.fill: "#9ae49a"
+  }
+  com: Completed {
+    shape: circle
+    style.fill: "#eaea7e"
+  }
+  arc: Archived {
+    shape: circle
+    style.fill: "#ff7e7e"
+  }
+
+  pen -> act: Activate
+  pen -> arc: Archive
+
+  act -> com: Complete
+
+  arc -> pen: Restore
+}

examples/README.md

@@ -15,3 +15,13 @@ passes through, the arms are locked again until another coin is inserted.
 ```sh
 deno run ./examples/turnstile.ts
 ```
+
+## Project
+
+This is more complex example illustrate all features of this library
+
+![Project diagram](https://git.pleshevski.ru/pleshevskiy/it-fsm/raw/branch/main/assets/project.svg)
+
+```sh
+deno run ./examples/project.ts
+```