Groundwork for help tab for issue #117
bugfix
Added placeholder text to new help tab.
Created /translated page for issue #156, the new help tab (for #117) now contains a link to the new page.
Fixed missing braces in template.
Improved some paragraph formatting.
Changed link text on application form to match Dom's suggestion.
Merge pull request #247 from DOAJ/issue117

Issues 117 & 156: new pages for help and translations