- added about site mockup

src/components/codeEditors/aceEditors/simpleAceEditor.tsx

src/components/renderContentComponents/pdfRenderer.tsx

src/constants.ts

src/helpers/printHelper.ts

src/questionSystem/testSyntaxGuide.md

src/types/dashboard.ts

static_pages/about/about.css

static_pages/about/about.html

static_pages/about/about.js

static_pages/about/about.styl

static_pages/about/about.ts

...ies/fontawesome-free-5.9.0-web/webfonts/fa-solid-900.woff

static_pages/about/dependencies/jquery-3.3.1.min.js

static_pages/about/dependencies/jquery.fancybox.min.css

static_pages/about/dependencies/jquery.fancybox.min.js

static_pages/about/screenshots/kfeature1-1.png

static_pages/about/screenshots/kfeature1-2.png

static_pages/about/screenshots/kfeature1-3.png

static_pages/about/screenshots/kfeature2-1.png

static_pages/about/screenshots/kfeature2-2.png