Update README.md

README.md

@@ -13,7 +13,7 @@ license: apache-2.0
 
 ## Project File Structure
 
-```
+<pre>
 KB-VQA
 ├── Files: Various files required for the demo such as samples images, dissertation report ..etc.
 ├── models
@@ -59,4 +59,4 @@ KB-VQA
 ├── app.py: main entry point for streamlit - first page in the streamlit app)
 ├── README.md (readme - this file)
 ├── requirements.txt: Requirements file for the whole project that includes all the requirements for running the demo app on the HuggingFace space environment.
-```
+</pre>