VACMS-8794 Update documentation for running TeamSite pages locally (#20987)
VACMS-8794 Update documentation for running TeamSite pages locally (#20987)

* VACMS-8794:
- update documentation for running TeamSite (legacy) pages locally

* Update src/applications/proxy-rewrite/README.md

Co-authored-by: Darius D. <b4e0089b4cc66712379c6f61f03a8ae4c7f3f8e6@adhocteam.us>

* VACMS-8794: updated yarn command

Co-authored-by: Darius D. <b4e0089b4cc66712379c6f61f03a8ae4c7f3f8e6@adhocteam.us>
department-of-veterans-affairs/vets-website,department-of-veterans-affairs/vets-website