SIG Network Meeting missing from community calendar on https://www.kubernetes.dev/resources/calendar/

Logging this here so it doesn't get forgotten. Someone came in to our meeting yesterday and noted that through https://www.kubernetes.dev/resources/calendar/ the bi-weekly SIG Network meetings are _not visible_. We should remedy this.

/sig network

Start by inspecting the community calendar at https://www.kubernetes.dev/resources/calendar/ and trace how meeting entries are maintained. Add the bi-weekly SIG Network meetings through that source, then verify they are visible on the calendar page.

Written by the indexing model from the issue text.