Manual start the reading process through REST API

[caco3]

some would like to trigger the reading through REST API: #1051 (comment)
and MQTT: #1410

[Slider0007]

Please find more information in the WIKI:

• REST API
• MQTT API

[caco3]

@Slider0007 Thank you for extending the documentation! I also added some explanations to it, but there is still much more to do.

[caco3]

The save REST API is not clear to me, what means delay and which image gets saved where?

[Slider0007]

@caco3 : I agree more details for the respective handler/topics would be helpful. Therefore I used highlights for every item, so additional info can be added easily.

I'm haven't used/tested every REST handler extensively, just did a quick sneak.
For my understanding "save" is like capture with the possibility to save the image to SD card relative to root of SD card. Delay seems to delay the capture.

[caco3]

Therefore I used highlights for every item, so additional info can be added easily.

I was so free to replace your quotes with more inlined text (4 whitespaces). This way it gets inlined correctly automatically