Merge pull request #5814 from drwells/fix-doc-typos-8

Fix some typos in the documentation.

diff --cc include/deal.II/base/array_view.h
Simple merge

diff --cc include/deal.II/base/utilities.h
Simple merge

diff --cc include/deal.II/grid/filtered_iterator.h
Simple merge

diff --cc include/deal.II/grid/tria.h
Simple merge

diff --cc source/grid/manifold_lib.cc
Simple merge