Update README.md (#227)

Author: mestcihazal

examples/teleop-react/README.md

@@ -9,20 +9,24 @@ First, follow the setup instructions for the repository in `CONTRIBUTING.md`. Th
 ```shell
 cd examples/teleop-react
 npm install
-npm start
 ```
 
-The connection hostname and secret fields can be pre-filled from a `.env` file in the `teleop-react` directory.
+The connection hostname and secret fields can be pre-filled from a `.env` file in the `teleop-react` directory. You have to set these before running npm start. 
 
 ```ini
 # examples/teleop-react/.env
 VITE_ROBOT_HOSTNAME=my-cool-robot.viam.cloud
 VITE_ROBOT_SECRET=super-secret-key
 ```
 
+```shell
+npm start
+```
+
 ### Base Project Template
 
 This example assumes that you are working inside the Viam TypeScript SDK repository. If you want to use this example as a base for your project, make the following changes:
 
 * Remove the `preinstall: ...` line from `package.json`
 * Install the SDK: `npm install --save @viamrobotics/sdk@latest`
+* You will also need to rename the components in the example code to match the actual component names in your configuration, for example, the camera could be named "cam" here but "camera" in your configuration.