update: readme run commands

Author: Ankit098

README.md

@@ -9,19 +9,25 @@ PyTest Integration with BrowserStack using SDK.
 ## Setup
 
 * Clone the repo with `git clone -b sdk https://github.com/browserstack/pytest-browserstack.git`
+* It is recommended to use a virtual environment to install dependencies. To create a virtual environment:
+  ```
+  python3 -m venv env
+  source env/bin/activate # on Mac
+  env\Scripts\activate # on Windows
+  ```
 * Install dependencies `pip install -r requirements.txt`
 * To run your automated tests using BrowserStack, you must provide a valid username and access key. This can be done either by providing your username and access key in the `browserstack.yml` configuration file, or by setting the `BROWSERSTACK_USERNAME` and `BROWSERSTACK_ACCESS_KEY` environment variables.
 
 ## Run sample test in parallel:
 * To run the sample test across platforms defined in the configuration file run:
 ```
-  browserstack-sdk pytest -s tests/test_sample.py
+  browserstack-sdk pytest -s tests/test.py
 ```
 
 ## Run a sample local test:
 * To run the sample local test across platforms defined in the configuration file, you just need to set `browserstackLocal` key as true in the `browserstack.yml` file and run:
 ```
-  browserstack-sdk pytest -s tests/test_local.py
+  browserstack-sdk pytest -s tests/local-test.py
 ```
 
 ## Notes