Fix Documenter #207

Job	Run time
Documentation	2m 53s
Julia 1.0 - ubuntu-latest - x64 - push	10m 37s
Julia 1.0 - ubuntu-latest - x86 - push	10m 10s
Julia 1.0 - macOS-latest - x64 - push	10m 41s
Julia 1.0 - windows-latest - x64 - push	18m 11s
Julia 1.0 - windows-latest - x86 - push	13m 22s
Julia 1 - ubuntu-latest - x64 - push	9m 30s
Julia 1 - ubuntu-latest - x86 - push	9m 53s
Julia 1 - macOS-latest - x64 - push	9m 56s
Julia 1 - windows-latest - x64 - push	10m 48s
Julia 1 - windows-latest - x86 - push	5m 59s
Julia nightly - ubuntu-latest - x64 - push	8m 56s
Julia nightly - ubuntu-latest - x86 - push	9m 56s
Julia nightly - macOS-latest - x64 - push	9m 26s
Julia nightly - windows-latest - x64 - push	10m 34s
Julia nightly - windows-latest - x86 - push	6m 16s
	2h 37m 8s

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