Merge branch 'docs'

Author: ChrisRackauckas

.travis.yml

@@ -16,3 +16,14 @@ notifications:
 
 coveralls: true
 codecov: true
+
+jobs:
+  include:
+    - stage: "Documentation"
+      julia: 1.4
+      os: linux
+      script:
+        - julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd()));
+                                               Pkg.instantiate()'
+        - julia --project=docs/ docs/make.jl
+      after_success: skip