add examples

data/example-7946.geojson

@@ -0,0 +1,41 @@
+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "geometry": {
+        "type": "Point",
+        "coordinates": [102.0, 0.5]
+      },
+      "properties": {
+        "prop0": "value0"
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": {
+        "type": "LineString",
+        "coordinates": [[102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]]
+      },
+      "properties": {
+        "prop0": "value0",
+        "prop1": 0.0
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": {
+        "type": "Polygon",
+        "coordinates": [
+          [[100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0]]
+        ]
+      },
+      "properties": {
+        "prop0": "value0",
+        "prop1": {
+          "this": "that"
+        }
+      }
+    }
+  ]
+}

data/example-simple.geojson

@@ -0,0 +1,10 @@
+{
+  "type": "Feature",
+  "geometry": {
+    "type": "Point",
+    "coordinates": [125.6, 10.1]
+  },
+  "properties": {
+    "name": "Dinagat Islands"
+  }
+}

data/example-specification.topojson

@@ -0,0 +1,39 @@
+{
+  "type": "Topology",
+  "objects": {
+    "example": {
+      "type": "GeometryCollection",
+      "geometries": [
+        {
+          "type": "Point",
+          "properties": {
+            "prop0": "value0"
+          },
+          "coordinates": [102, 0.5]
+        },
+        {
+          "type": "LineString",
+          "properties": {
+            "prop0": "value0",
+            "prop1": 0
+          },
+          "arcs": [0]
+        },
+        {
+          "type": "Polygon",
+          "properties": {
+            "prop0": "value0",
+            "prop1": {
+              "this": "that"
+            }
+          },
+          "arcs": [[-2]]
+        }
+      ]
+    }
+  },
+  "arcs": [
+    [[102, 0], [103, 1], [104, 0], [105, 1]],
+    [[100, 0], [101, 0], [101, 1], [100, 1], [100, 0]]
+  ]
+}