updated travis.yml

.travis.yml

@@ -5,13 +5,10 @@ services:
 sudo: required
 
 language: python            # this works for Linux but is an error on macOS or Windows
-stages:
-  - test
-  - dockerize
 
 jobs:
   include:
-    - stage: test
+    - stage: "Tests"
       name: "Python 3.7 on Xenial Linux"
       os: linux
       language: python
@@ -35,8 +32,7 @@ jobs:
           - $HOME/.local/share/renv
           - $TRAVIS_BUILD_DIR/renv/library
             
-    - stage: test
-      name: "Python 3.7 on macOS"
+    - name: "Python 3.7 on macOS"
       os: osx
       osx_image: xcode11.3  # Python 3.7 running on macOS 10.14.4
       language: generic       # 'language: python' is an error on Travis CI macOS
@@ -58,8 +54,8 @@ jobs:
           - $RENV_PATHS_ROOT
           - $TRAVIS_BUILD_DIR/renv/library
 
-      - stage: dockerize
-        name: "Python 3.7 on Xenial Linux"
+    - stage: deploy
+      name: "Python 3.7 on Xenial Linux Docker"
       os: linux
       language: python
       script: