put the sponsor button on readme

README.md

@@ -2,9 +2,13 @@
 
 NER Annotator for SpaCy allows you to create training data for creating a custome NER Model with custom tags. It can either be access as a web application directly from [https://tecoholic.github.io/ner-annotator/](https://tecoholic.github.io/ner-annotator/) or can be installed in Linux systems as a desktop application.
 
+🚀🚀 **You can now sponsor this project for specific features your need.**
+
+<iframe src="/~https://github.com/sponsors/tecoholic/button" title="Sponsor tecoholic" height="35" width="116" style="border: 0;"></iframe>
+
 ## Desktop application
 
-An experimental version of the annotator is also available for 
+An experimental version of the annotator is also available for
 
 - Linux as a [Debian Package or an AppImage](/~https://github.com/tecoholic/ner-annotator/releases)
 - Windows as a [x64 MSI Installer](/~https://github.com/tecoholic/ner-annotator/releases/download/v1.0.2/NER.Annotator_1.0.2_x64.msi)