Add sponsors and backers to other readmes

cli/readme.md

@@ -18,3 +18,15 @@ or
 $ npm install -g git-file-history
 $ git-file-history path/to/file.ext
 ```
+
+### Sponsors
+
+Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/git-history#sponsor)]
+
+<a href="https://opencollective.com/git-history/sponsor/0/website" target="_blank"><img src="https://opencollective.com/git-history/sponsor/0/avatar.svg"></a>
+
+### Backers
+
+Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/git-history#backer)]
+
+<a href="https://opencollective.com/git-history#backers" target="_blank"><img src="https://opencollective.com/git-history/backers.svg?width=890"></a>

vscode-ext/readme.md

@@ -4,15 +4,14 @@ Quickly browse the history of a file from any git repository
 
 ![feature X](https://user-images.githubusercontent.com/1911623/52807635-d5043480-306a-11e9-9b03-351b7cda4936.gif)
 
-## Sponsors
-
-[Become a Sponsor](https://opencollective.com/git-history) to help us ship more features!
-
-<div align="center">
-<a href="https://opencollective.com/git-history/donate">
-<img
-  src="https://opencollective.com/git-history/donate/button.png?color=blue"
-  width="300"
-/>
-</a>
-</div>
+### Sponsors
+
+Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/git-history#sponsor)]
+
+<a href="https://opencollective.com/git-history/sponsor/0/website" target="_blank"><img src="https://opencollective.com/git-history/sponsor/0/avatar.svg"></a>
+
+### Backers
+
+Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/git-history#backer)]
+
+<a href="https://opencollective.com/git-history#backers" target="_blank"><img src="https://opencollective.com/git-history/backers.svg?width=890"></a>