Tidy up spacing in donations page

Author: Hugo Osvaldo Barrera

docs/donations.rst

@@ -8,11 +8,8 @@ sponsors willing to fund our continued work on it.
 If you found my work useful, please consider donating. Thank you!
 
 - Bitcoin: ``13p42uWDL62bNRH3KWA6cSpSgvnHy1fs2E``.
-
 - Sponsor via one-time tips or recurring donations `via Ko-fi`_.
-
-.. _via Ko-fi: https://ko-fi.com/whynothugo
-
 - Sponsor via recurring donations `via liberapay`_.
 
+.. _via Ko-fi: https://ko-fi.com/whynothugo
 .. _via liberapay: https://liberapay.com/WhyNotHugo/