topic/jdopheid/bro/edits_to_installation_and_getting_started

Minor grammar edits to Installation and Quick Start pages

Also, please let me know if I need to modify future JIRA tickets.

Thanks,
Jeannette

************************

Repository : ssh://git@bro-ids.icir.org/bro

On branch : topic/jdopheid/bro/edits_to_installation_and_getting_started
Link : https://github.com/bro/bro/commit/4c52c378d5873abb052d688251f0ec7f5aa1c514

And:

Repository : ssh://git@bro-ids.icir.org/bro

On branch : topic/jdopheid/bro/edits_to_installation_and_getting_started
Link : https://github.com/bro/bro/commit/af95026348688e0df8c867f67d2a53a3d440cf41