Update README.md (#20)

Author: shoumikhin

mv3/apple/ExecuTorchDemo/README.md

@@ -49,6 +49,9 @@ The steps to add the necessary package dependency are available in the
 ### 4. Set Up ExecuTorch
 
 ```bash
+# Create a virtual environment if needed:
+# python3 -m venv .venv && source .venv/bin/activate && pip install --upgrade pip
+
 pip install executorch
 ```
 
@@ -58,7 +61,7 @@ Alternatively, clone ExecuTorch and set up the environment as explained in the [
 ### 5. Clone the Demo App
 
 ```bash
-git clone --depth 1 https://github.com/pytorch-labs/executorch-examples.git
+git clone https://github.com/pytorch-labs/executorch-examples.git && cd executorch-examples
 ```
 
 ## Models and Labels
@@ -70,14 +73,12 @@ Now, let's move on to exporting and bundling the MobileNet v3 model.
 Export the MobileNet v3 model using the command line with Core ML, MPS and XNNPACK backends
 
 ```bash
-cd ~/executorch-examples
 python3 mv3/python/export.py
 ```
 
 Move the exported model to a specific location where the Demo App will pick them up:
 
 ```
-cd ~/executorch-examples
 mkdir -p mv3/apple/ExecuTorchDemo/ExecuTorchDemo/Resources/Models/MobileNet/
 mv *.pte mv3/apple/ExecuTorchDemo/ExecuTorchDemo/Resources/Models/MobileNet/
 ```
@@ -99,8 +100,7 @@ tests, and finally run the app.
 
 ### 1. Open Project in Xcode
 
-Double-click on the project file under
-`executorch-examples/mv3/apple/ExecuTorchDemo/ExecuTorchDemo` to openit with Xcode, or run the command:
+Double-click on the project file under `mv3/apple/ExecuTorchDemo/ExecuTorchDemo` to openit with Xcode, or run the command:
 
 ```bash
 open mv3/apple/ExecuTorchDemo/ExecuTorchDemo.xcodeproj
@@ -114,7 +114,7 @@ command line:
 ```bash
 xcrun simctl create executorch "iPhone 15"
 xcodebuild clean test \
-     -project executorch-examples/mv3/apple/ExecuTorchDemo/ExecuTorchDemo.xcodeproj \
+     -project mv3/apple/ExecuTorchDemo/ExecuTorchDemo.xcodeproj \
      -scheme App \
      -destination name=executorch
 xcrun simctl delete executorch