fix coverage report

.travis.yml

@@ -1,22 +1,18 @@
 # Until https://github.com/julia-actions/julia-uploadcodecov/issues/1 get fixed
 # submit coverage report via travis
 language: julia
-os:
-  - linux
-julia:
-  - 1.0
+julia: 1.0
+os: linux
 notifications:
   email: false
 
 jobs:
   include:
-    - stage: deploy
-      julia: 1.0
-      os: linux
-      script:
-        - julia -e 'import Pkg; Pkg.add(["Documenter", "Unitful"])'
-        - julia -e 'import ImageAxes; include("docs/make.jl")'
+    - stage: Coverage
+      codecov: true
 
-after_success:
-  # push coverage results to Codecov
-  - julia -e 'using Pkg; Pkg.add("Coverage"); using Coverage; Codecov.submit(process_folder())'
+    - stage: Documentation
+      script:
+        - julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd()));
+                                               Pkg.instantiate()'
+        - julia --project=docs/ docs/make.jl