Add documentation for "POST /appraisal" endpoint

[sudorandom]

No description provided.

[fscreene]

Is there any specific part of the code we could look at until this is done?

[sudorandom]

This is the file: https://github.com/evepraisal/go-evepraisal/blob/master/web/handle_appraisal.go#L25

The gist is:

• appraisal contents get sent as the "raw_textarea" parameter or as a file via "uploadappraisal" with a multi-part request.
• The "market" is sent in as the "market" parameter. The valid options for that are "jita", "amarr", "dodixie", "hek" and "universe".

If successful, the new appraisal ID will be in an HTTP header called "X-Appraisal-ID" and you'll have a status code of 200.

[fscreene]

That's great, thanks for the explanation!

I look forward to using the JSON endpoint instead but this works in the meantime.

[sudorandom]

I added the JSON endpoint for creating new appraisals and have documented the API a bit better here: http://evepraisal.com/about/api

I'll close this issue but let me know how I can improve it.