mv to jco dir, gitignore artifacts, use bindings dir for jco artifacts

Author: nuke-web3

.gitignore

@@ -2,3 +2,7 @@
 **/.vscode
 *.swp
 *.swo
+
+# Build artifacts from examples
+**/jco/bindings
+**/examples/**/*.wasm

component-model/examples/tutorial/jco/README.md

@@ -0,0 +1,20 @@
+# Wasm Component Calcultor in JavaScript
+
+This is a `node` CLI and browesr based example implementation of running a component that exports the `calculate` interface from a JavaScript application. It uses [`jco`](https://bytecodealliance.github.io/jco/) to generate JavaScript bindings and shows how the same component can be executed in the browser or locally with Node. For another example of using `jco` with components in multiple environments, see the [`jco` example](https://github.com/bytecodealliance/jco/blob/main/docs/src/example.md).
+
+```sh
+# Wasm refereced here was generated by cargo component.
+# See top-level README for commands to generate it.
+#
+# We want to *ommit* wasm requiring Wasi,
+# thus use `composed.wasm`, not the `command.wasm`. 
+
+# Transpile to generate bindings for JS:
+jco transpile ../composed.wasm -o bindings
+
+# Serve required files (index.html & jco genereated files minimally):
+npx live-server .
+
+# Run CLI example:
+node cli-calc.js
+```

component-model/examples/tutorial/www/cli-calc.js renamed to component-model/examples/tutorial/jco/cli-calc.js

@@ -1,4 +1,4 @@
 // See the README for details on *generation* of the required import
-import { calculate } from "./composed.js";
+import { calculate } from "./bindings/composed.js";
 
 console.log("Answer (to life) = " + calculate.evalExpression("add", 21, 21));

component-model/examples/tutorial/www/index.html renamed to component-model/examples/tutorial/jco/index.html

@@ -10,7 +10,7 @@ <h1>Wasm Component Demo</h1>
     <p id="answer"></p>
 
     <script type="module">
-      import { calculate } from "./composed.js";
+      import { calculate } from "./bindings/composed.js";
       function run() {
         var x = document.getElementById("lhs");
         var y = document.getElementById("rhs");