add orga-build example

Author: xiaoxinghu

examples/build/index.org

@@ -0,0 +1,11 @@
+#+title: Build with Orga
+
+* Hi
+
+You can build a static website with *just* org files.
+
+Here's [[file:more.org][another page]].
+
+#+begin_src sh
+orga-build
+#+end_src

examples/build/more.org

@@ -0,0 +1,3 @@
+#+title: Another Page
+
+This is another page.

examples/build/package.json

@@ -0,0 +1,12 @@
+{
+	"name": "@orgajs/example-build",
+	"private": true,
+	"type": "module",
+	"scripts": {
+		"dev": "orga-build dev",
+		"build": "orga-build"
+	},
+	"devDependencies": {
+		"orga-build": "workspace:^"
+	}
+}