Update 'README.md'

README.md

@@ -42,6 +42,7 @@ ___
 - [Universally unique identifier](https://en.wikipedia.org/wiki/Universally_unique_identifier)
 - [List of war apology statements issued by Japan](https://en.wikipedia.org/wiki/List_of_war_apology_statements_issued_by_Japan)
 - [Hachijojima](https://en.wikipedia.org/wiki/Hachij%C5%8D-jima)
+- [Propanolol](https://en.wikipedia.org/wiki/Propranolol)
 
  
 ## [Mathematics and Theoretical Computer Science](mathematics.md)