updated demo and readme for package install

Demo.ipynb

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:777844f15f935804cd331020a2338c7db3670a96b0dc6d3430b2602cde666e68
-size 989346
+oid sha256:4c6af3fabb5d255609ad3954c451015dbf565d3855ae54440f99429ba6978f55
+size 878101

README.md

@@ -134,7 +134,12 @@ git clone https://huggingface.co/nvidia/nemotron-graphic-elements-v1
 ```
 git clone [email protected]:nvidia/nemotron-graphic-elements-v1
 ```
-
+Optional:
+This can be installed as a package using pip
+```
+cd nemotron-graphic-elements-v3
+pip install -e .
+```
 2. Run the model using the following code:
 
 ```
@@ -143,8 +148,8 @@ import numpy as np
 import matplotlib.pyplot as plt
 from PIL import Image
 
-from model import define_model
-from utils import plot_sample, postprocess_preds_graphic_element, reformat_for_plotting
+from nemotron_graphic_elements_v1.model import define_model
+from nemotron_graphic_elements_v1.utils import plot_sample, postprocess_preds_graphic_element, reformat_for_plotting
 
 # Load image
 path = "./example.png"