Update eligibility-and-requirements/README.md, eligibility-and-requirements/expectations.md, eligibility-and-requirements/support.md, training-format/README.md, training-format/dates-and-times.md, trainer.md, overview.md, README.md files

Deleted pitch/README.md, pitch/getting-started.md, pitch/slides.md, resources/websites/README.md, resources/README.md, resources/cheat-sheets.md, SUMMARY.md, .gitbook/assets/ubuntu_training (1).pdf, .gitbook/assets/ubuntu_training (2).pdf, .gitbook/assets/Ubuntu_Training.pdf, .gitbook/assets/ubuntu_training.pdf, .gitbook/assets/ubuntu-logo14.png, .gitbook/assets/ubuntu_cheat_sheet.pdf, .gitbook/assets/ubuntu_lines_activity.png, .gitbook/assets/meirian.jpg files

Update welcome/trainer.md, welcome/README.md, SUMMARY.md, pitch/getting-started.md, pitch/slides.md, README.md files

Update welcome/eligibility-and-requirements/README.md, welcome/eligibility-and-requirements/expectations.md, welcome/eligibility-and-requirements/support.md, welcome/training-format/README.md, welcome/training-format/dates-and-times.md, SUMMARY.md, welcome/overview.md files

Deleted welcome-1/eligibility-and-requirements.md, welcome-1/dates-and-times.md, welcome-1/training-format.md, welcome-1/assessment.md, welcome-1/abstract.md, welcome-1/trainer.md, your-virtual-machine/README.md, your-virtual-machine/familiarity-with-the-ubuntu-desktop.md, your-virtual-machine/signing-into-your-virtual-machine.md, accessing-your-data.md, super-user-do.md, pitch/slides.html, the-command-line.md files