Refactor code to show files and directories in the

app.py

@@ -106,10 +106,11 @@ def list_git_repo_files_and_directories(repo_url: str, branch: str = "main"):
         return get_files_and_directories(response)
 
 
-def show_directories(url: str):
+def show_files_and_directories(url: str):
     with contextlib.suppress(Exception):
         files_and_directories = list_git_repo_files_and_directories(url)
         directories = files_and_directories.get("directories", [])
+        files = files_and_directories.get("files", [])
         print(directories)
         return gr.Dropdown(
             label="Directories",
@@ -118,34 +119,76 @@ def show_directories(url: str):
             visible=True,
             interactive=True,
             multiselect=True,
+        ), gr.Dropdown(
+            label="Files",
+            choices=files,
+            max_choices=1,
+            visible=True,
+            interactive=True,
+            multiselect=True,
         )
 
 
-with gr.Blocks() as demo:
-    gr.Markdown("# Migrate a GitHub Repository to Hugging Face Hub")
+html_text_app_description = """
+Whilst GitHub is great for hosting code the Hugging Face Datasets Hub is a better place to host datasets. 
+Some of the benefits of hosting datasets on the Hugging Face Datasets Hub are:
+<br>
+<ul>
+<li>Hosting for large datasets</li>
+<li>An interactive preview of your dataset</li>
+<li>Access to the dataset via many tools and libraries including; datasets, pandas, polars, dask and DuckDB</li>
+</ul>
+
+<br>
+This app will help you migrate a dataset currently hosted on GitHub to the Hugging Face Datasets Hub.
+"""
+
+with gr.Blocks(theme=gr.themes.Base()) as demo:
+    gr.HTML(
+        """<h1 style='text-align: center;'> GitHub to Hugging Face Hub Dataset Migration Tool</h1>
+        <center><i> &#x2728; Migrate a dataset in a few steps &#x2728;</i></center>"""
+    )
+    gr.HTML(
+        """<center> GitHub is a great place for sharing code but the Hugging Face Hub has many advantages for sharing datasets. 
+        <br> This Space will guide you through the process of migrating a dataset from GitHub to the Hugging Face Hub. </center>"""
+    )
+    gr.Markdown("### Location of existing dataset")
     gr.Markdown("URL for the GitHub repository where the dataset is currently hosted")
     source_github_repository = gr.Textbox(lines=1, label="Source GitHub Repository URL")
-    gr.Markdown("OPTIONAL: If you want to upload a specific folder in the GitHub repo")
+    gr.Markdown("### Select files and folder to migrate")
+    gr.Markdown(
+        "(Optional): select a specific folder and/or files to migrate from the GitHub repository."
+    )
     folder_in_github_repo = gr.Dropdown(
         None,
-        label="Folder in GitHub Repository to upload",
+        label="Folder in the GitHub Repository to migrate",
+        allow_custom_value=True,
+        visible=True,
+    )
+    files_in_github_repo = gr.Dropdown(
+        None,
+        label="Files in GitHub Repository to migrate",
         allow_custom_value=True,
         visible=True,
     )
     source_github_repository.change(
-        show_directories, [source_github_repository], [folder_in_github_repo]
+        show_files_and_directories,
+        [source_github_repository],
+        [folder_in_github_repo, files_in_github_repo],
     )
-    gr.Markdown("Destination repo for your dataset")
+    gr.Markdown("### Destination for your migrated dataset")
+    gr.Markdown("Destination repository for your dataset on the Hugging Face Hub")
     destination_hf_hub_repository = gr.Textbox(
         label="Destination Hugging Face Repository",
-        placeholder="username/repository_name",
+        placeholder="i.e. <hugging face username>/<repository_name>",
     )
+    gr.Markdown("## Authentication")
     gr.Markdown(
         """You need to provide a token with write access to the namespace you want to upload to.
-                You can generate or access your token from [here](https://huggingface.co/settings/token)."""
+                You can generate/access your Hugging FAce token from [here](https://huggingface.co/settings/token)."""
     )
     hf_token = gr.Textbox(label="Hugging Face Token", type="password")
-    summit_btn = gr.Button()
+    summit_btn = gr.Button("Migrate Dataset")
     result = gr.Markdown(label="Summary", visible=True)
     summit_btn.click(
         push_to_hf,