fix documentation

Author: Andrey Oskin

.travis.yml

@@ -6,15 +6,13 @@ os:
 julia:
   - 1.3
   - nightly
-matrix:
-  allow_failures:
-    - julia: nightly
-  fast_finish: true
-notifications:
-  email: false
 after_success:
   - julia -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Coveralls.submit(process_folder())'
+coveralls: true
 jobs:
+  allow_failures:
+    - julia: nightly
+  fast_finish: true
   include:
     - stage: Documentation
       julia: 1.3
@@ -24,3 +22,5 @@ jobs:
           Pkg.instantiate();
           include("docs/make.jl");'
       after_success: skip
+notifications:
+  email: false