visual improvements

app.py

@@ -16,7 +16,9 @@ def search(seq, n_res):
         chain = res["chain_id"]
         value = res["score"]
         genes = ','.join(res["gene_ids"])
-        key = f"PDB: {prot} | Chain: {chain} | Genes: {genes}"
+        key = f"PDB: {prot} | Chain: {chain}"
+        if genes != 'Unknown':
+            key += f" | Genes: {genes}"
         outputs[key] = value
     return outputs
 
@@ -28,7 +30,9 @@ def limit_n_results(n):
 with gr.Blocks() as demo:
     with gr.Column():
         gr.Markdown("""
-        # Sequence Based Protein Binding Search Engine
+        # Protein Binding Search Engine
+        This application examines all files uploaded to [PDB](https://www.rcsb.org/) to find the chains with which a given protein sequence is most likely to bind.
+        If the results are linked to specific genes, their IDs will also be displayed.
         """)
         with gr.Row():
             with gr.Column():