Add apple-clang 11 to settings.yml (#1327)
Add apple-clang 11 to settings.yml (#1327)

Signed-off-by: Uilian Ries <d4bad57018205bdda203549c36d3feb0bfe416a7@gmail.com>
conan-io/docs,conan-io/docs,conan-io/docs,conan-io/docs