Add problem statement

[hxtree]

This pull request adds the problem statement for the project, outlining the challenges of running multiple applications in the cloud without a solid architectural framework. It also introduces the solution of using a monorepo setup on AWS and highlights the features of the project.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00%	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (e68a820)	2256	1616	71.63%
Head commit (a881f89)	2256 (+0)	1616 (+0)	71.63% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#875)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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