Update README.md

README.md

@@ -10,7 +10,7 @@ The assignments were semi-manually extracted from official PDFs available at [CE
 
 ## Licensing and Credits
 The majority of collection work was done by our student co-worker Jan Kapsa.
-Members of CZLC does not own the test assignments, neither are responsible for their contents.
+Members of CZLC do not own the test assignments, neither are responsible for their contents.
 
 ## Citation
 ```bibtex