[R-390] Added link to '73 magazine' and 'Hollow State Newsletter' on our website

[Larry H]

Hi all,  I just added a link to '73 magazine' PDF's and 'Hollow State
Newsletter' PDF's on our website, r-390a.net in the 'Magazine' section of
the 'Reference' page.  Here's a direct link to it: The R-390A Frequently
Asked Questions Page <https://www.r-390a.net/faq-refs.htm#Magazines>

Are there other magazines or newsletters that are available on the web
you would like to see listed here.

Regards, Larry