Update quickstart.rst to include example of passing server arguments

[rkrishnasanka]

Changes proposed in this pull request:

• Updated the docs such that it comes with an example for passing server arguments and serving static files

[Ruwann]

Thanks for the PR!
I have made some small adjustments.
Full disclaimer: this will probably be changed when updating the docs to 3.0 :)

[coveralls]

Pull Request Test Coverage Report for Build 4321318662

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 75 unchanged lines in 18 files lost coverage.
• Overall coverage increased (+1.09%) to 93.238%

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Files with Coverage Reduction	New Missed Lines	%
connexion/apps/abstract.py	1	93.33%
connexion/middleware/response_validation.py	1	98.59%
connexion/operations/openapi.py	1	94.87%
connexion/validators/form_data.py	1	92.86%
connexion/lifecycle.py	2	86.08%
connexion/operations/abstract.py	2	77.91%
connexion/security.py	2	83.54%
connexion/apps/asynchronous.py	3	95.16%
connexion/apps/flask.py	3	96.84%
connexion/operations/swagger2.py	3	95.33%

Totals
Change from base Build 4201806645:	1.09%
Covered Lines:	3268
Relevant Lines:	3505

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💛 - Coveralls

[rkrishnasanka]

No issues !

It took me like 24 hours to figure out how to pass the arguments, so I think it's important to highlight this in the documentation.