Update VoIP README.MD

Fixed typos within the documentation.

examples/voip/README.MD

@@ -26,7 +26,7 @@ Key features:
 For testing purposes, the node VoIP server in this repository's example is configured to echo data back to a connected client.
 Here is an outline of steps to run the node VoIP server from this repository:
 1. Download "node VoIP server.js".
-2. If not already installed, install node.js on your operating system.
+2. If it is not installed already, install node.js on your operating system.
 3. If not already known, discover your server's local IP address by running "ipconfig" (Windows) or "ifconfig" (Linux) in your Command Line Interface (CLI).
    While the local port number is set to 8080 in the "node voip server.js" file, you can change it to any available port as desired.
 4. Run the following command in your CLI to run the VoIP server when desired: node "node VoIP server.js". It is also possible to run the "node VoIP server.js"
@@ -36,7 +36,7 @@ Here is an outline of steps to run the node VoIP server from this repository:
 
 1. Download main.py and buildozer.spec and place them in a folder that is solely used for this project.
 2. Within the start_call() function, update the dst_address and dst_port arguments in main.py to match your server's local IP address and port.
-   All other arguements within the function are not required but may be assigned values as desired.
+   All other arguments within the function are not required but may be assigned values as desired.
 3. Within your buildozer.spec file, ensure plyer is included.
 4. Within your buildozer.spec file, also ensure you have the following permissions before compiling with Buildozer:
    INTERNET, RECORD_AUDIO, ACCESS_NETWORK_STATE, and WAKE_LOCK.
@@ -48,16 +48,16 @@ Here is an outline of steps to run the node VoIP server from this repository:
 ## iOS
 
 • The VoIP iOS framework only supports arm_64 (actual iPhone) devices by default. To use the simulator, you must load the simulator
-framework instead as commented in the voip.py source code located in the ios folder of the plyer module.
+framework instead as commented in the voip.py source code located in the iOS folder of the plyer module.
 1. Download main.py and place it in a folder that is solely used for this project.
 2. Within the start_call() function, update the dst_address and dst_port arguments in main.py to match your server's local IP address and port.
-   All other arguements within the function are not required but may be assigned values as desired.
+   All other arguments within the function are not required but may be assigned values as desired.
 3. Through kivy-ios, utilize toolchain to create a new Xcode project that references the main.py folder.
 4. Using toolchain, install plyer.
 5. Open the project in Xcode and navigate to the project's directory explorer if not already selected.
 6. Under resources, click yourprojectname-info to load the info.plist file of your project.
 7. Hover over any description already set and press the add button to select "Privacy - Microphone Usage Description" to add microphone permission.
-8. To the right of the permission, include a breif message to explain why microphone access is needed.
+8. To the right of the microphone permission added, enter a brief message to explain why microphone access is needed.
    This will appear during the permission request.
 9. Ensure the node VoIP server is running.
 10. Run the compiled mobile application on your iOS device and press the call button to hear your voice echoing back from the server.