write help page for SKEWP spreadsheet functions
NEW.
Fix proposed https://gerrit.libreoffice.org/#/c/22322/1
Olivier Hallot committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/help/commit/?id=8259390d2d978d37dc73e8e2cb0f1fcd0299afdf tdf#95281 Help page for the SKEWP function