Add a way to provide template context help

[pawamoy]

Sister of pawamoy/shellman#38

Boost priority

• Boost priority in our backlog through Polar.sh. Higher pledge, higher priority.
• Minimum pledge by user/organization is $5, minimum amount for boost is $30.
• View all issues with pledges.
• We receive the funds once the issue is completed and confirmed by you.
• Features with the insiders label are released to sponsors first, and tied to a funding goal.