README.md in gepub-1.0.13 vs README.md in gepub-1.0.14

@@ -3,11 +3,11 @@
 [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/skoji/gepub?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![GitHub Actions Status](https://github.com/skoji/gepub/workflows/Test/badge.svg)](https://github.com/skoji/gepub/actions?query=workflow%3ATest)
 [![Test Coverage](https://api.codeclimate.com/v1/badges/acd6df07e071a4bbb399/test_coverage)](https://codeclimate.com/github/skoji/gepub/test_coverage)
 [![Gem Version](https://badge.fury.io/rb/gepub.svg)](http://badge.fury.io/rb/gepub)
 
-* http://rdoc.info/github/skoji/gepub/master/frames
+* http://rdoc.info/github/skoji/gepub/main/frames
 
 ## DESCRIPTION:
 
 a generic EPUB parser/generator library.
 
@@ -106,6 +106,10 @@
  * [examples in this repository](https://github.com/skoji/gepub/tree/main/examples/) 
 
 ## INSTALL:
 
 * gem install gepub
+
+## DONATE:
+
+* Bitcoin Address: `1M69AwoxpgPZsp5KStLUEjP7so5dHVfDTH`