Fix grammar in _config.yml

Author: tash1207

_config.yml

@@ -5,7 +5,7 @@ description: >
   We are a group of developers involved in the tech industry that work,
   laugh, discover, and grow together. We encourage each other to push the
   boundaries of the technology we work with everyday. To help reach our
-  personal goals we collaborating often and want others to share in this 
+  personal goals we collaborate often and want others to share in this 
   experience.
 baseurl: "" # the subpath of your site, e.g. /blog/
 url: "https://cryptic.io" # the base hostname & protocol for your site