Update README.md

Author: SQiShER

README.md

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+[![Flattr this git repo](http://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=SQiShER&url=https://github.com/SQiShER/java-object-diff&title=java-object-diff&language=&tags=github&category=software)
+
 ## Introduction
 
 `java-object-diff` is a simple, yet powerful library to find differences between Java objects. It takes two objects and generates a tree structure that represents any differences between the objects and their children. This tree can then be traversed to extract more information or apply changes to the underlying data structures.
@@ -58,6 +60,6 @@ This library has been battle-tested in a rather big project of mine, where I use
 
 ## Donate
 
-If you’d like to show me some love with a small donation you can do so via  [Gittip](https://www.gittip.com/SQiShER/) or [Bitcoin](https://blockchain.info/address/19kRmHJ4qMnYCY6rnY6kCf96Prj6WGxisk).
+If you’d like to support this project with a small donation, you can do so via  [Flattr](https://flattr.com/submit/auto?user_id=SQiShER&url=https://github.com/SQiShER/java-object-diff&title=java-object-diff&language=&tags=github&category=software) or [Bitcoin](https://blockchain.info/address/19kRmHJ4qMnYCY6rnY6kCf96Prj6WGxisk).
 
-Alternatively you could send me a [nice tweet](https://twitter.com/SQiShER), start contributing, write a blog post about this project, tell your friends about it or simply [**star**](https://github.com/SQiShER/java-object-diff) the main repository. I'm pretty much happy about everything that shows me that someone out there is actually using this library and appreciates all the hard work that goes into its development.
+Alternatively you could send me a [nice tweet](https://twitter.com/SQiShER), start contributing, write a blog post about this project, tell your friends about it or simply [**star**](https://github.com/SQiShER/java-object-diff) the main repository. I'm happy about everything that shows me that someone out there is actually using this library and appreciates all the hard work that goes into its development.