Add logo to Readme for better branding (#24)

Author: jeffwidman

README.md

@@ -1,3 +1,11 @@
+<div align="center">
+    <picture>
+        <source media="(prefers-color-scheme: light)" srcset="https://user-images.githubusercontent.com/7659/174594540-5e29e523-396a-465b-9a6e-6cab5b15a568.svg">
+        <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/7659/174594559-0b3ddaa7-e75b-4f10-9dee-b51431a9fd4c.svg">
+        <img src="https://user-images.githubusercontent.com/7659/174594540-5e29e523-396a-465b-9a6e-6cab5b15a568.svg" alt="Dependabot" width="336">
+    </picture>
+</div>
+
 # Example Dependabot CLI Usage
 
 This repo serves as an example of how to use Dependabot CLI for updates. It is intended as a starting point for advanced users to run a self-hosted version of Dependabot within their own projects.