- added support for language specific exercise description blocks

package.json

src/components/renderContentComponents/markdownRenderer.tsx

src/components/renderContentComponents/renderWrapper.tsx

src/components/sites/doExerciseSite/doExerciseSite.tsx

...nts/sites/editCustomProjectSite/editCustomProjectSite.tsx

...omponents/sites/exerciseEditorSite/exerciseEditorSite.tsx

...e/exerciseSyntaxHelpPanel/exerciseSyntaxHelpPanelView.tsx

...ites/exerciseEditorSite/previewPanel/previewPanelView.tsx

...ageOwnOrGroupExerciseComponents/releasesSite/listView.tsx

src/components/sites/tutorViewSite/tutorViewSite.tsx

src/constants.ts

src/helpers/markdownHelper.ts

src/questionSystem/exerciseQuestionSyntaxGuide.md

src/styles/common.styl

yarn.lock