[!362] Fix typo in documentation
Merge branch 'fix-typo' into 'master'
See merge request core/dune-istl!362
(cherry picked from commit 7f378e3e)
6ebb2d11 Fix typo in documentation
Merge branch 'fix-typo' into 'master'
See merge request core/dune-istl!362
(cherry picked from commit 7f378e3e)
6ebb2d11 Fix typo in documentation