Office Hours - implement more podcast directories

[gerbrent]

Currently Office Hours doesn't list many podcast directories on either the Fireside page or here at ./office-hours/subscribe

Task to implement more podcast directories:

• [ ] confirm Office Hours are in the directories listed by other shows
• [ ] add Office Hours to said directories (might require JB input via Fireside?)
• [ ] confirm above directories listed on Fireside
• [ ] implement additional Subscribe links/buttons to ./office-hours/subscribe