adding the proposal to app and changed the format

Homepage.py

@@ -19,7 +19,6 @@
 # Project Proposal
 # =========================
 with st.expander("Project Proposal", expanded=False):
-
     st.subheader("Project Overview")
     st.write("""
     This project analyzes weekly U.S. petroleum product supplied data and
@@ -30,10 +29,10 @@
 
     st.subheader("Datasets")
     st.markdown("""
-    - **Weekly U.S. Petroleum Product Supplied**  
+    - **Weekly U.S. Petroleum Product Supplied**
       https://www.eia.gov/opendata/browser/petroleum/cons/wpsup
 
-    - **Weekly WTI Crude Oil Spot Price (RWTC)**  
+    - **Weekly WTI Crude Oil Spot Price (RWTC)**
       https://www.eia.gov/opendata/browser/petroleum/pri/spt
     """)
 
@@ -44,14 +43,15 @@
     3. Do petroleum supply and crude oil prices show similar patterns over time?
     4. Are there noticeable disruptions during major events such as COVID-19 period?
     """)
-
     st.subheader("Link to the notebook")
-    st.markdown("[Project Notebook](https://github.com/advanced-computing/giggling-wombat/blob/main/project.ipynb)")
+    st.markdown(
+        "[Project Notebook](https://github.com/advanced-computing/giggling-wombat/blob/main/project.ipynb)"
+    )
 
     st.subheader("Target Visualization")
     st.markdown("""
-    - Weekly time-series line chart of U.S. petroleum product supplied  
-    - Weekly time-series line chart of WTI crude oil price  
+    - Weekly time-series line chart of U.S. petroleum product supplied
+    - Weekly time-series line chart of WTI crude oil price
     - Visual comparison of trends between the two series
     """)