SDK-495: Updating README.md to reference YOTI_SCENARIO_ID instead of YOTI_APPLICATION_ID

Author: emmas-yoti

README.md

@@ -90,7 +90,7 @@ After creating your application on the [Yoti Dashboard](https://www.yoti.com/das
 
 The variables required for the SDK to work are found in the tabs on your Yoti application's settings page ([Yoti Dashboard](https://www.yoti.com/dashboard/)). These are:
 
-* **`YOTI_APPLICATION_ID`** - This is used to configure the [Yoti Login Button](https://www.yoti.com/developers/documentation/#2-front-end-integration).
+* **`YOTI_SCENARIO_ID`** - This is used to configure the [Yoti Login Button](https://www.yoti.com/developers/documentation/#2-front-end-integration).
 * **`YOTI_CLIENT_SDK_ID`** - This is the SDK identifier generated by Yoti Dashboard in the Key tab when you create your app. Note this is not your Application Identifier which is needed by your client-side code.
 * **`YOTI_KEY_FILE_PATH`** - This is the path to the application .pem file, we recommend keeping your .pem file outside of your repository. It can be downloaded only once from the Keys tab in your Yoti Dashboard. (e.g. /home/user/.ssh/access-security.pem).
 
@@ -235,7 +235,7 @@ To run the Flask or Django container:
    * `cd examples/yoti_example_flask` for __Flask__   
    __OR__
    * `cd examples/yoti_example_django` for __Django__
-1. Make sure the environment variables `YOTI_APPLICATION_ID`, `YOTI_CLIENT_SDK_ID` and `YOTI_KEY_FILE_PATH` are set (instructions in the [Configuration](#configuration) section). _Please note that with Docker, the .pem file must reside in a location within where docker is being run from, so it should be placed somewhere under the respective  [yoti_example_flask](/examples/yoti_example_flask)/[yoti_example_django](/examples/yoti_example_django) folders._
+1. Make sure the environment variables `YOTI_SCENARIO_ID`, `YOTI_CLIENT_SDK_ID` and `YOTI_KEY_FILE_PATH` are set (instructions in the [Configuration](#configuration) section). _Please note that with Docker, the .pem file must reside in a location within where docker is being run from, so it should be placed somewhere under the respective  [yoti_example_flask](/examples/yoti_example_flask)/[yoti_example_django](/examples/yoti_example_django) folders._
 1. Rebuild the images if you have modified the docker-compose.yml file with
    - `docker-compose build --no-cache`
 1. Start the container with `docker-compose up`