Fix incomplete definition in the Glossary (#4139)

* Fix incomplete definition in the Glossary

* Update src/_data/glossary.yml

Co-authored-by: forstisabella <[email protected]>

---------

Co-authored-by: forstisabella <[email protected]>

Author: markzegarelli

src/_data/glossary.yml

@@ -133,7 +133,7 @@ Source: |
   A website, server library, mobile SDK, or cloud application which can send data into Segment.
 
 Spec: |
-  Short for "Specification", the Segment Spec is our set of recommendations for what data to collect, and how to format it, for best
+  Short for "Specification", the Segment Spec is our set of recommendations for what data to collect and how to format it.
 
 SSP: |
   Supply-side Platform