Fix typo

Author: hannesm

code/hsec-tools/README.md

@@ -1,6 +1,6 @@
 # hsec-tools
 
-`hesc-tools` aims to support [Haskell advisories database](https://github.com/haskell/security-advisories).
+`hsec-tools` aims to support [Haskell advisories database](https://github.com/haskell/security-advisories).
 
 ## Building