Merge pull request #728 from h3poteto/donate

Add donate buttons for Patreon and Liberapay

README.md

@@ -110,7 +110,12 @@ If there is something unknown, please refer to this pull request: https://github
 The software is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 # Donate
-I prepared Bitcoin Address.
+
+[![Patreon](https://c5.patreon.com/external/logo/become_a_patron_button.png)](https://www.patreon.com/bePatron?u=15085320)
+
+[![Liberapay](https://liberapay.com/assets/widgets/donate.svg)](https://liberapay.com/h3poteto/donate)
+
+Or I prepared Bitcoin Address.
 
 ![Bitcoin](qr.png)