Fix breast density example application to make it work with SDK v0.6+ (Project-MONAI#491)

* Fix this example application to make it work with SDK v0.6+

Signed-off-by: M Q <[email protected]>

* Fix the example app errors and corrected folder name

Signed-off-by: M Q <[email protected]>

---------

Signed-off-by: M Q <[email protected]>
Signed-off-by: Simone Bendazzoli <[email protected]>

Author: MMelQin

examples/apps/breast_density_classifier_app/README.md

@@ -9,7 +9,7 @@ Sample data and a torchscript model can be downloaded from https://drive.google.
 python app.py -i <input_dir> -o <out_dir> -m <breast_density_model>
 ```
 
-## Package the application as a MONAI Application Package (container image)
+## Package the application as a MONAI Application Package (contianer image)
 In order to build the MONAI App Package, go a level up and execute the following command.
 ```
 monai-deploy package breast_density_classification_app -m <breast_density_model> -c breast_density_classifer_app/app.yaml --tag breast_density:0.1.0 --platform x64-workstation -l DEBUG
@@ -20,4 +20,4 @@ monai-deploy package breast_density_classification_app -m <breast_density_model>
 monai-deploy run breast_density-x64-workstation-dgpu-linux-amd64:0.1.0 -i <input_dir> -o <output_dir>
 ```
 
-Once the container exits successfully, check the results in the output directory. There should be a newly created DICOM instance file and a `output.json` file containing the classification results.
+Once the container exits successfully, check the results in the output directory. There should be a newly creeated DICOM instance file and a `output.json` file containing the classification results.