Fixed typo in sequence-similarity docstring.
Fixed typo in sequence-similarity docstring.

Vaguery/Clojush,lspector/Clojush,Vaguery/Clojush,NicMcPhee/Clojush,NicMcPhee/Clojush,saulshanabrook/Clojush,saulshanabrook/Clojush,thelmuth/Clojush,thelmuth/Clojush,lspector/Clojush