MongoDB count query example doesn't work on v25.1.0

[fdebijl]

The current example for a count query at https://redash.io/help/data-sources/querying/mongodb/ doesn't seem to work, as of v25.1.0 the count query also requires a query object. I'd propose the example is changed from

{
    "collection": "my_collection",
    "count": true
}

to

{
    "collection": "my_collection",
    "query": {},
    "count": true
}

to reflect a minimal working version of a count query.

[Ch-Abhinav-Chowdary]

Hey I will immediately start working on this issue