Fix URL to Pavlov website (#34)

Author: vrde

README.md

@@ -14,7 +14,7 @@ al](http://www.cs.cmu.edu/~hcwong/Pdfs/icip02.ps).  There is an existing
 [reference implementation](https://www.pureftpd.org/project/libpuzzle) which
 may be more suited to your needs.
 
-The folks over at [Pavlov](https://pavlovml.com/) have released an excellent
+The folks over at [Pavlov](https://usepavlov.com/) have released an excellent
 [containerized version of image-match](https://github.com/pavlovml/match) for
 easy scaling and deployment.