Fix stale v/3.0.12 paths, add a Searching page The docs pointed at tachyon/v/3.0.12, which exists on an installation but never in git: the source sits at v/0.0.0. Every GitHub link built on it was a 404, which DanClarke-io reported for Custom-Themes in #147. The same rot was on three further pages. GitHub links now use v/0.0.0. The paths that describe an installation rather than the repository use <version>, since any number baked in there is wrong as soon as the next release ships. The addJs link was pinned to a pre-rebrand commit where the file is at snappymail/v/0.0.0 under the RainLoop namespace, so it was broken twice over; it points at master now, without the line anchor that drifts anyway. Searching was undocumented, which is what prompted discussion #146: the search box accepts far more keys than the advanced form offers and nobody could have known. Every key in the table was verified against SearchCriterias, not copied from upstream docs.