Update README.md

Author: anna-grim

README.md

@@ -34,7 +34,7 @@ The pipeline for computing skeleton metrics consists of three main steps:
 We start with a set of ground truth graphs stored as individual SWC files, where the "xyz" attribute represents voxel coordinates in an image. Each ground truth graph is loaded and represented as a NetworkX graph with these coordinates as a node-level attribute. The first step is to label the nodes of each graph with the corresponding segment IDs.
 
 <p align="center">
-  <img src="imgs/labeled_graph.png" width="900">
+  <img src="imgs/labeled_graph.png" width="800">
   <br>
   <b>Figure:</b> 
 </p>