Build documentation.

Author: kalvotom

.travis.yml

@@ -1,14 +1,19 @@
 
 language: julia
 
-os:
-  - linux
-
-julia:
-  - 1.4
-  - nightly
-
-codecov: true
-
-after_success:
-  - julia -e 'using Pkg; cd(Pkg.dir("ChristensenSet")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'
+jobs:
+  include:
+    - stage: "Test"
+      julia:
+        - 1.4
+        - nightly
+      codecov: true
+      after_success:
+        - julia -e 'using Pkg; cd(Pkg.dir("ChristensenSet")); Pkg.add("Coverage"); using Coverage; Codecov.submit(Codecov.process_folder())'      
+    - 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