Revised some sections. Changes also applied to drafts on drive.
Revised some sections. Changes also applied to drafts on drive.

jcchin/Hyperloop_v2,kennethdecker/MagnePlane,kennethdecker/MagnePlane,andipeng/MagnePlane,andipeng/MagnePlane,jcchin/MagnePlane,jcchin/MagnePlane,jcchin/Hyperloop_v2