diff --git a/README.md b/README.md
index 0ce3d1f..7d10ca3 100644
--- a/README.md
+++ b/README.md
@@ -169,7 +169,8 @@ You must pass an options as the second argument of `getTopography`, *or* you can
       </td>
       <td> <code> string </code> </td>
       <td> none </td>
-      <td> Optional url for custom tiles to be used instead of Mapbox rgb-terrain.  Must be in the standard <a href="https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames">slippymap tilename</a> format. </td>
+      <td> Optional url for custom tiles to be used instead of Mapbox rgb-terrain.  Must be in the standard <a href="https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames">slippymap tilename</a> format.  <br>
+      <a href="https://codesandbox.io/s/github/slutske22/leaflet-topography/tree/main/example-ts">👁 See demo project here  👁</a> (Note this demo relies on custom tiles that may no longer be available by the time you read this). </td>
    </tr>
    <tr>
       <td>
diff --git a/example-ts/package-lock.json b/example-ts/package-lock.json
index de79313..1b65538 100644
--- a/example-ts/package-lock.json
+++ b/example-ts/package-lock.json
@@ -1175,6 +1175,36 @@
       "resolved": "https://registry.npmjs.org/@terraformer/common/-/common-2.0.7.tgz",
       "integrity": "sha512-8bl+/JT0Rw6FYe2H3FfJS8uQwgzGl+UHs+8JX0TQLHgA4sMDEwObbMwo0iP3FVONwPXrPHEpC5YH7Grve0cl9A=="
     },
+    "@types/esri-leaflet": {
+      "version": "2.1.9",
+      "resolved": "https://registry.npmjs.org/@types/esri-leaflet/-/esri-leaflet-2.1.9.tgz",
+      "integrity": "sha512-Z3GLyJTepEsEpo2FB3eRqSRxGw1Y2Vohpuu5Qp87tc3MGbXjhSUTRYldoaACZj6JQQJuOnyK9FLMdSziq5C1Ow==",
+      "requires": {
+        "@types/leaflet": "*"
+      }
+    },
+    "@types/esri-leaflet-geocoder": {
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/@types/esri-leaflet-geocoder/-/esri-leaflet-geocoder-2.2.3.tgz",
+      "integrity": "sha512-SyJuRZlPARrPWwx7L5KrvKLNZcbyw4CuCzyj7e3kgo7MZFpFCkGpO7Po5J6kvZt+OdT138u3WpXRVnRNNrSeRQ==",
+      "requires": {
+        "@types/esri-leaflet": "*",
+        "@types/leaflet": "*"
+      }
+    },
+    "@types/geojson": {
+      "version": "7946.0.8",
+      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.8.tgz",
+      "integrity": "sha512-1rkryxURpr6aWP7R786/UQOkJ3PcpQiWkAXBmdWc7ryFWqN6a4xfK7BtjXvFBKO9LjQ+MWQSWxYeZX1OApnArA=="
+    },
+    "@types/leaflet": {
+      "version": "1.7.4",
+      "resolved": "https://registry.npmjs.org/@types/leaflet/-/leaflet-1.7.4.tgz",
+      "integrity": "sha512-a3qYlMwJ62+WRoiDmYODUD4KywA14jP2XohAkAWtELGuMAD3MohZa/MmIvQDqF52xNI9OYaY8BMsL+9z7yf2HQ==",
+      "requires": {
+        "@types/geojson": "*"
+      }
+    },
     "@types/q": {
       "version": "1.5.4",
       "resolved": "https://registry.npmjs.org/@types/q/-/q-1.5.4.tgz",
diff --git a/example-ts/package.json b/example-ts/package.json
index 6083abf..d3ed4a8 100644
--- a/example-ts/package.json
+++ b/example-ts/package.json
@@ -20,6 +20,8 @@
 	"dependencies": {
 		"@babel/runtime": "^7.14.5",
 		"@babel/runtime-corejs3": "^7.14.5",
+		"@types/esri-leaflet-geocoder": "^2.2.3",
+		"@types/leaflet": "^1.7.4",
 		"core-js": "^3.15.0",
 		"esri-leaflet": "^2.5.1",
 		"esri-leaflet-geocoder": "^2.3.3",