Use smaller header image

mrchrisadams · mrchrisadams · commit 2c70df5e8fe1 · 2024-10-07T16:24:45.000Z
I think the one from the github blog with the `?W=1600` param serves an image that is something like ten times smaller.

This loads much faster as a result.
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-![GitHubGSD](https://github.com/user-attachments/assets/61eb0a79-1e91-4ae9-859f-0c4a2e368b37)
+![GitHubGSD](https://github.blog/wp-content/uploads/2024/09/1200x630-GHNonprofits_BlogB.png?w=1600)
 
 ---
 ## GitHub's Green Software Directory is a simple and easy-to-use resource that all developers can use to adopt green software tools. This list aims to help any developer find green software projects available on GitHub. 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-![GitHubGSD](https://github.com/user-attachments/assets/61eb0a79-1e91-4ae9-859f-0c4a2e368b37)`
	`1`	`+![GitHubGSD](https://github.blog/wp-content/uploads/2024/09/1200x630-GHNonprofits_BlogB.png?w=1600)`
`2`	`2`
`3`	`3`	`---`
`4`	`4`	`## GitHub's Green Software Directory is a simple and easy-to-use resource that all developers can use to adopt green software tools. This list aims to help any developer find green software projects available on GitHub.`