doc: separate python README

README.md

@@ -78,31 +78,7 @@ Then, burn firmware using dfu-util via USB.
 
 ## Control from PC
 
-NanoVNA is able to work standalone, but also be controlled via USB serial interface from PC. There are sample scripts in python directory.
-
-Preparation.
-
-    $ pip install numpy
-    $ pip install scikit-rf   
-
-Plot reflection LOGMAG.
-
-    $ cd python
-    $ ./nanovna.py -p
-
-Plot transmission LOGMAG.
-
-    $ ./nanovna.py -p -P 1
-
-Plot smithchart.
-
-    $ ./nanovna.py -s
-
-Show usage.
-
-    $ ./nanovna.py -h
-
-To use NanoVNA from Jupyter notebook, see [this page](/python/NanoVNA-example.ipynb).
+See [python directory](/python/README.md).
 
 
 ## Note

python/README.md

@@ -0,0 +1,31 @@
+# Control NanoVNA from python script
+
+NanoVNA is able to be controlled via USB serial interface from PC. There are sample scripts in this directory.
+
+## Preparation
+
+    $ cd python
+    $ pip install numpy
+    $ pip install scikit-rf   
+
+## Run
+
+### Plot reflection LOGMAG.
+
+    $ ./nanovna.py -p
+
+### Plot transmission LOGMAG.
+
+    $ ./nanovna.py -p -P 1
+
+### Plot smithchart.
+
+    $ ./nanovna.py -s
+
+### Show usage.
+
+    $ ./nanovna.py -h
+
+## Using in Jupyter Notebook
+
+To use NanoVNA from Jupyter notebook, see [this page](/python/NanoVNA-example.ipynb).