Merge pull request #428 from srobo/correct-ages-in-meta-description

Correct ages in description

Author: sedders123

_config.yml

@@ -4,7 +4,7 @@ url: https://studentrobotics.org
 title: Student Robotics
 description: >
   Student Robotics is an exciting annual competition challenging people aged
-  16-18 to assemble a team and build fully autonomous robots.
+  16-19 to assemble a team and build fully autonomous robots.
 
 markdown: kramdown
 collections: