Update circle.yml

Author: cclauss

circle.yml

@@ -1,7 +1,7 @@
 version: 2
 jobs:
   Python3:
-    - build:
+    build:
       working_directory: ~/sc2reader
       docker:
         - image: python:3.6.2
@@ -13,8 +13,8 @@ jobs:
           - master
           - old_master
       steps:
-        - checkout
-        - run:
+        checkout
+        run:
             name: Flake8 and unittests on Python 3.6.2
             command: |
               python -m venv venv
@@ -28,7 +28,7 @@ jobs:
               python -m unittest discover test_replays
               python -m unittest discover test_s2gs
   Python2:
-    - build:
+    build:
       # working_directory: ~/sc2reader
       docker:
         - image: python:2.7.13
@@ -40,8 +40,8 @@ jobs:
           - master
           - old_master
       steps:
-        - checkout
-        - run:
+        checkout
+        run:
             name: Flake8 and unittests on Python 2.7.13
             command: |
               # pip install virtualenv