Add currency and news submodules to the default include, improve comments

app.py

@@ -7,15 +7,18 @@ import utils
 if gr.NO_RELOAD:
     from openbb import obb
 
+# A set of submodules to include when searching for tools, registering
+# them to the MCP server, and dynamically building the Gradio interface
+# List of valid values: https://docs.openbb.co/platform/reference
+INCLUDE = {"currency", "equity", "news"}
+
 # Get tool names and guides
 ARGS = "obb", obb # type: ignore
-tool_names = utils.get_callable_names(
-    *ARGS, 
-    include={"equity"}
-)
+tool_names = utils.get_callable_names(*ARGS, include=INCLUDE)
 tool_guides = utils.generate_callable_guides(*ARGS, tool_names)
 
 
+# Build the demo interface
 with gr.Blocks() as demo:
     gr.Markdown("# OpenBB MCP")
 
@@ -43,7 +46,7 @@ with gr.Blocks() as demo:
                 output = gr.Textbox(label="Output", lines=10)
                 test_btn = gr.Button("Run")
 
-                # Format vars
+                # Format vars for dynamic function generation
                 t = tool_name
                 tool_name = tool_name.replace(".", "_")
                 tool_guide = tool_guide.replace(t, tool_name)
@@ -128,6 +131,7 @@ def {tool_name}({csv_tool_names}) -> str:
 """)
 
 
+# Launch the demo
 if __name__ == "__main__":
     demo.launch(
         server_port=7860,