* chore: typo
* chore: update project description
* feat: command to install dev-requirements.txt
Often applications have development or test specific requirements which
are not required in production.
- Add new command `bench setup dev-requirements`
- installs all `dev-requirements.txt` in app's root folder.
* refactor: remove duplicate function
* refactor: use `log` instead of print
* refactor: merge dev-requirement command
* feat: install dev-dependencies in get-app if dev
When developer mode is enabled install all dev dependencies too while
doing `get-app`
* fix: warn about --dev not supporting node
- added visual hierarchy and structure to text
- added table of contents
- breakdown additional information about each section in their respective
files
