Rename test phases in Travis build matrix

.travis.yml

@@ -13,9 +13,9 @@ before_install:
 
 matrix:
   include:
-    - name: Test
+    - name: Tox Test
       script: tox -e py36
-    - name: Black
+    - name: Black template
       script: tox -e black
     - name: Basic Docker
       script: sh tests/test_docker.sh