Fix minor PyCharm issues

docs/using/recipes.md

@@ -446,14 +446,14 @@ RUN pip install --quiet --no-cache-dir jupyter_dashboards faker && \
 USER root
 # Ensure we overwrite the kernel config so that toree connects to cluster
 RUN jupyter toree install --sys-prefix --spark_opts="\
-    --master yarn
-    --deploy-mode client
-    --driver-memory 512m
-    --executor-memory 512m
-    --executor-cores 1
-    --driver-java-options
-    -Dhdp.version=2.5.3.0-37
-    --conf spark.hadoop.yarn.timeline-service.enabled=false
+    --master yarn \
+    --deploy-mode client \
+    --driver-memory 512m \
+    --executor-memory 512m \
+    --executor-cores 1 \
+    --driver-java-options \
+    -Dhdp.version=2.5.3.0-37 \
+    --conf spark.hadoop.yarn.timeline-service.enabled=false \
 "
 USER ${NB_UID}
 ```

docs/using/troubleshooting.md

@@ -222,18 +222,20 @@ If you have also **created a new user**, you might be experiencing any of the fo
 - Use `docker inspect <container_id>` and look for the [`Mounts` section](https://docs.docker.com/storage/volumes/#start-a-container-with-a-volume) to verify that the volume was created and mounted accordingly:
 
   ```json
-  "Mounts": [
-        {
-            "Type": "volume",
-            "Name": "my-vol",
-            "Source": "/var/lib/docker/volumes/stagingarea/_data",
-            "Destination": "/home/jovyan/stagingarea",
-            "Driver": "local",
-            "Mode": "z",
-            "RW": true,
-            "Propagation": ""
-        }
-    ],
+  {
+    "Mounts": [
+      {
+        "Type": "volume",
+        "Name": "my-vol",
+        "Source": "/var/lib/docker/volumes/stagingarea/_data",
+        "Destination": "/home/jovyan/stagingarea",
+        "Driver": "local",
+        "Mode": "z",
+        "RW": true,
+        "Propagation": ""
+      }
+    ]
+  }
   ```
 
 ## Problems installing conda packages from specific channels