Updates CalendarConversion Goodie Re #2767

[mylainos]

Issue #2767
Updates this IA to full template.

---

IA page: https://duck.co/ia/view/calendar_conversion
Maintainer: @mattlehning

[daxtheduck]

@mylainos Hey!

Thanks for taking the time to contribute! We really appreciate it.

We work closely with every contributor to make Instant Answers the best they can be, so we appreciate your patience as we look over your code. From here, the process usually goes like this:

1. Pull Request is reviewed by the DuckDuckGo staff and community
2. Staff and community will leave feedback with any necessary updates to the function or design.
3. Once you've made any necessary corrections, then your Instant Answer will be merged and deployed live on DuckDuckGo!

If you have any questions along the way, feel free to ask them here. Our staff and community are also available on Slack to answer any questions you may have. If you'd like to join us there please send an email to quackslack@duckduckgo.com.

More Info: http://docs.duckduckhack.com/submitting/submitting-overview.html

Thanks!

[daxtheduck]

CalendarConversion

Description: convert dates from the Gregorian calendar to the Hijri/Jalali calendars and back

Example Query: [22/8/2003 to the hijri calendar](https://beta.duckduckgo.com/?q=22/8/2003 to the hijri calendar), [23/6/1424 hijri to gregorian](https://beta.duckduckgo.com/?q=23/6/1424 hijri to gregorian)

Tab Name: Answer

Source:

These are the important fields from the IA page. Please check these for errors or missing information and update the IA page

---

This is an automated message which will be updated as changes are made to the IA page

[GuiltyDolphin]

@mylainos Thaaanks! 🐬