Fix punctuation (#460)
Fix punctuation (#460)

Fix punctuation for improved readability.
rossta/webpacker,gauravtiwari/webpacker,rails/webpacker,rossta/webpacker,gauravtiwari/webpacker,rossta/webpacker,gauravtiwari/webpacker,usertesting/webpacker,usertesting/webpacker,rossta/webpacker,rails/webpacker,usertesting/webpacker