Update load csv docstring

[imilinovic]

Description

Update load csv docstring about loading from remote location.

Pull request type

Please delete options that are not relevant.

• Documentation content changes

Closes (link to issue)
closes: #264

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

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Reviewer checklist (the reviewer checks this part)

• Core feature implementation
• Tests
• Code documentation
• Documentation on gqlalchemy/docs

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[katarinasupe]

@imilinovic We no longer use the develop branch for the release; everything goes directly to the main. Please rebase.
Also, why are there all of these changes included in your PR?

FYI, as discussed, this will be included in the next release (July 10th). Work on Memgraph is a priority, so we can move the milestone due date if you can't make it.

Note to self: update reference guide

[antepusic]

Wording suggestion

[katarinasupe]

@imilinovic merge the latest main for tests to pass.
Once the tests pass, feel free to squash and merge.