Feature: Added section explaining inter contract calls

[vasmohi]

This PR includes description of how inter-contract calls work using lottery game tutorial example.

[vizipi]

Pull request analysis by VIZIPI

Below you will find who is the most qualified team member to review your code.
This analysis includes his/her work on the code included in this Pull request, in addition to their experience in code affected by these changes ( partly found within the list of potential missing files below )   Feedback always welcome

Reviewers with knowledge related to these changes

Match %	Person	Commit Count	Common Files
100.00%	RutvikGhaskataEalf	6	1
100.00%	yongenaelf	5	1
100.00%	AelfHarsh	4	1
100.00%	zhifenglee-portkey	1	1

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Potential missing files from this Pull request

files commonly committed with a subset of this pr, but not committed this time. (click to collapse)

File	Percentile	rate
docs/quick-start/developers/_deploy.md	50.00%	9 out of 18 times
docs/quick-start/developers/vote-contract/index.md	50.00%	9 out of 18 times
docs/quick-start/developers/hello-world-contract/index.md	50.00%	9 out of 18 times

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Committed file ranks

(click to expand)

96.51%[...docs/quick-start/developers/lottery-game-smart-contract/i]