Fix typos

README.md

@@ -28,9 +28,9 @@ When you're done, submit a PR back to this repository, so we can have everyone's
 python -m venv env
 ```
 
-This uses `venv` to create a new virutal envrionment for you.
+This uses `venv` to create a new virtual environment for you.
 
-### Activate the virtual envrionment
+### Activate the virtual environment
 
 ```bash
 source env/bin/activate

deployment_instructions.md

@@ -65,7 +65,7 @@ In our example, we will use [gunicorn](https://gunicorn.org/). To install gunico
 pip install gunicorn
 ```
 
-Even with gunicorn, we need to specify which variable in our file contains the Flask application instance. Firtly, we need to make the same changes to the code as we did for "flask run" command - 
+Even with gunicorn, we need to specify which variable in our file contains the Flask application instance. Firstly, we need to make the same changes to the code as we did for "flask run" command - 
 
 ```
 # begin server instance