[Doc] Add geofencing subscription example

[mapedraza]

Orion documentation lacks a geofencing subscription example, and it is not pretty straightforward from documentation, since it is almost based on queries, not on subscriptions.

Maybe extending this table field here could help:

fiware-orion/doc/manuals/orion-api.md

Line 3654 in 442541c

| `expression` | ✓ | object| An expression composed of `q`, `mq`, `georel`, `geometry` and `coords` (see [List Entities](#list-entities-get-v2entities) operation above about this field). `expression` and sub elements (i.e. `q`) must have content, i.e. `{}` or `""` is not allowed |

@fgalan what do you think?

[fgalan]

Expand the examples set is always good :)

However, instead of replacing the existing example with q, I'd suggest to add a new example (copy-paste of the former one and them replace q by the geo-filter).

[fgalan]

Maybe extending this table field

What do you mean by "extending the table field"?

[mapedraza]

Maybe extending this table field

What do you mean by "extending the table field"?

Adding something like:

When using a geoquery as notification condition, you must include georel, geometry and coords parameters under expression field. For further information about this parameters check [](LINK TO GEOQUERIES). You can see the following [example](LINK TO GEOFENCING EXAMPLE)

[fgalan]

When using a geoquery as notification condition, you must include georel, geometry and coords parameters under expression field

As alternative (probably clearer and simpler):

georel, geometry and coords have to be used together (i.e. "all or nothing").

[fgalan]

Suggested change

	"coords": "coords": "37.407804, -6.004552"
	"coords": "37.407804,-6.004552"

[mapedraza]

Done at e56a7be

[fgalan]

Suggested change

	"expires": "2025-04-05T14:00:00.00Z",
	"throttling": 5
	"expires": "2025-04-05T14:00:00.00Z"

Remove also in L3891.

[mapedraza]

Done at e56a7be

[fgalan]

L3865 should be changed to "Example using attribute filter".

[mapedraza]

Done at e56a7be

[fgalan]

LGTM

[fgalan]

@fisuda this PR does some modifications to the documentation. It would be great if you could sync the Japanese translation, please. Thanks in advance!

[fisuda]

I sent the PR #4443. Thanks.