Project structure documented
Update project_structure.md
Documented project structure
Merge branch 'feature/docs' of https://github.com/Pearson-FutureTech/LetsCode-v2 into feature/docs

Conflicts:
	docs/project_structure.md
Closing #7764711217870
Changed project structure docs
Update project_structure.md
Server-side registration routine implemented
Server-side completed for issue #7656764063195
Merge branch 'feature/docs' into develop
Merge branch 'feature/user_sign_up' into develop
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