Minor corrections on sample.json, readme. Added nvmrc

samples/react-personal-anniversary-counter/.nvmrc

@@ -0,0 +1 @@
+v18.17.1

samples/react-personal-anniversary-counter/README.md

@@ -16,7 +16,7 @@ A simple web part to help you notice whenever a special day is coming up, say yo
 This sample is optimally compatible with the following environment configuration:
 
 
-![SPFx 1.15.2](https://img.shields.io/badge/SPFx-1.18.2-green.svg)
+![SPFx 1.18.2](https://img.shields.io/badge/SPFx-1.18.2-green.svg)
 ![Node.js v18](https://img.shields.io/badge/Node.js-v18-green.svg)
 ![Compatible with SharePoint Online](https://img.shields.io/badge/SharePoint%20Online-Compatible-green.svg)
 ![Does not work with SharePoint 2019](https://img.shields.io/badge/SharePoint%20Server%202019-Incompatible-red.svg "SharePoint Server 2019 requires SPFx 1.4.1 or lower")
@@ -36,7 +36,8 @@ For more information about SPFx compatibility, please refer to https://aka.ms/sp
 
 ## Contributors
 
-* Dan Toft ([@Tanddant](https://dan-toft.dk/)) |
+* [Dan Toft](https://github.com/Tanddant)
+
 
 ## Version history
 

samples/react-personal-anniversary-counter/assets/sample.json

@@ -28,7 +28,13 @@
             {
                 "type": "image",
                 "order": 100,
-                "url": "https://github.com/pnp/sp-dev-fx-webparts/raw/main/samples/react-personal-anniversary-counter/assets/Demo.gif",
+                "url": "https://github.com/pnp/sp-dev-fx-webparts/raw/main/samples/react-personal-anniversary-counter/assets/demo.gif",
+                "alt": "Web Part Preview"
+            },
+            {
+                "type": "image",
+                "order": 101,
+                "url": "https://github.com/pnp/sp-dev-fx-webparts/raw/main/samples/react-personal-anniversary-counter/assets/Screenshot.png",
                 "alt": "Web Part Preview"
             }
         ],