Add demo project

Author: brendan-ward

src/projects/demo-project/banner.jpg

@@ -0,0 +1,14 @@
+{
+    "coordinates": [
+        [
+            [-81.82614138774376, 35.84780895127848],
+            [-81.8370241874459, 35.836209204120905],
+            [-81.81812629099073, 35.82833396702833],
+            [-81.79433782632807, 35.82949728822071],
+            [-81.78660657663784, 35.84040998991698],
+            [-81.80208737104303, 35.85037494262714],
+            [-81.82614138774376, 35.84780895127848]
+        ]
+    ],
+    "type": "Polygon"
+}

src/projects/demo-project/boundary.json

@@ -0,0 +1,12 @@
+---
+id: demo-project
+title: 'DEMO project'
+latitude: 35.847
+longitude: -81.826
+date: 07/24/2025
+location: 'point - made up; polygon - AP made up'
+photo_caption: 'Grandfather Mountain, North Carolina, USA. Photo: Wes Hicks'
+photo_url: 'https://unsplash.com/photos/a-scenic-view-of-a-mountain-range-in-the-fall-Ag6m0LZNwnE'
+---
+
+This is a demo project!