Update starters and examples (#26508)

Co-authored-by: Renovate Bot <[email protected]>

Author: gatsbybot

README.md

@@ -1,6 +1,6 @@
 <p align="center">
   <a href="https://www.gatsbyjs.org">
-    <img alt="Gatsby" src="https://www.gatsbyjs.org/monogram.svg" width="60" />
+    <img alt="Gatsby" src="https://www.gatsbyjs.com/Gatsby-Monogram.svg" width="60" />
   </a>
 </p>
 <h1 align="center">

package-lock.json

@@ -10,7 +10,7 @@
   },
   "license": "0BSD",
   "dependencies": {
-    "gatsby": "^2.24.41",
+    "gatsby": "^2.24.47",
     "gatsby-theme-notes": "^1.3.87",
     "react": "^16.12.0",
     "react-dom": "^16.12.0"