Updated README

Author: shtaxxx

README.md

@@ -107,9 +107,11 @@ def mkLed():
 
     return m
 
-led = mkLed()
-verilog = led.to_verilog()
-print(verilog)
+if __name__ == '__main__':
+    led = mkLed()
+    # led.to_verilog(filename='tmp.v')
+    verilog = led.to_verilog()
+    print(verilog)
 ```
 
 Run the script.

README.rst

@@ -123,9 +123,11 @@ Python as below. A blinking LED hardware is modeled in Python.
         
         return m
 
-    led = mkLed()
-    verilog = led.to_verilog()
-    print(verilog)
+    if __name__ == '__main__':
+        led = mkLed()
+        # led.to_verilog(filename='tmp.v')
+        verilog = led.to_verilog()
+        print(verilog)
 
 Run the script.