Add two more BUSL examples from https://blog.adamretter.org.uk/business-source-license-adoption/

dosp-survey.ltx

@@ -221,6 +221,12 @@ Change Date: release +3 years
 Change License: Apache License, Version 2.0
 \otsurl{https://about.codecov.io/blog/codecov-is-now-open-source/}
 
+ZeroTier
+% TODO
+
+Materialize
+% TODO
+
 \subsection{Differences From Other Licensing Strategies}\label{differences}
 
 MariaDB (https://mariadb.com/bsl-faq-mariadb/):