updated the CircleCI config file to fix indentation errors

#53

.circleci/config.yml

@@ -11,35 +11,35 @@ jobs:
       - image: circleci/python:3.7
     working_directory: ~/repo
     steps:
-    - checkout
-    - restore_cache:
+      - checkout
+      - restore_cache:
         keys:
             - v1-dependencies-{{ checksum "requirements.txt" }}
             # fallback to using the latest cache if no exact match is found
             - v1-dependencies-
-    - run:
-      name: install dependencies
-      command: |
-        python3 -m venv venv
-        . venv/bin/activate
-        pip install -e .
+      - run:
+        name: install dependencies
+        command: |
+          python3 -m venv venv
+          . venv/bin/activate
+          pip install -e .
 
-    - save_cache:
-      paths:
-        - ./venv
-      key: v1-dependencies-{{ checksum "requirements.txt" }}
+      - save_cache:
+        paths:
+          - ./venv
+        key: v1-dependencies-{{ checksum "requirements.txt" }}
 
-    - run:
-      name: run tests
-      command: |
-        . venv/bin/activate
-        pip install codecov
-        pip install coverage
-        pip install opencv-python
-        pip install pytest
-        pip install scikit-image
-        coverage run -m pytest tests
-        codecov
+      - run:
+        name: run tests
+        command: |
+          . venv/bin/activate
+          pip install codecov
+          pip install coverage
+          pip install opencv-python
+          pip install pytest
+          pip install scikit-image
+          coverage run -m pytest tests
+          codecov
 
       # store artifacts (for example logs, binaries, etc)
       # to be available in the web app or through the API