Make community resources more discoverable

[tstromberg]

If you are not already aware that there is a Wolfi community, you are not going to find it. Specifically, the following pages should mention that there is a monthly community meeting and other community resources:

• https://github.com/wolfi-dev
• https://github.com/wolfi-dev/os

Otherwise folks might get the wrong idea about Wolfi not being open to community participation.