First round changes (Until where Alexander Rosenberg edited) to #Creating Jobs and ## Batch jobs at /jobs/creating-jobs.md

Applied all changes recommended by Alexander Rosenberg in the docs file for section jobs/Overview.md

1) Added file submitting-jobs.md and added an intro to it. 2) Added Jupyter Notebook Example for Batch script samples

Finalized about-star.md and added hardware info table. Added some links and made some minor changes to some sentences in quickstart.md

Added a caution message for checking version availability before loading a module using module avail