Update .travis.yml

.travis.yml

@@ -1,12 +1,14 @@
 sudo: required
 services:
-- docker
+  - docker
 language: python
 before_install:
-- pip install poetry
-- poetry install -v
+  - pip install poetry
+  - poetry install -v
+install:
+  - poetry install -v
 script:
-- make test
+  - make test
 deploy:
   before_deploy:
     - poetry config http-basic.pypi $PYPI_USER $PYPI_PASSWORD