README.md: improve wording when explaining how to measure parameters

diff --git a/README.md b/README.md
index 7c9a06b..b0924c8 100644 (file)
--- a/README.md
+++ b/README.md
@@ -21,14 +21,15 @@ A possible setup is to have two cell phones providing serial ports over which
 the programs can send AT commands and receive RING notifications.
 
 1. Measure the call setup time using `src/measure_call_setup_time.py` and take
-   note of `Max call setup time` and `Call setup time uncertainty`.
+   note of `Min call setup time` and `Max call setup time`.
 
 2. Measure the distance between rings in the same call using
-   `src/measure_ring_distance.py` and take note of `max_distance` and
-   `uncerainty`.
+   `src/measure_ring_distance.py` and take note of `Min ring distance` and
+   `Max ring distance`.
 
 3. Adjust the parameters in `src/savemysugar/CallDistanceTransceiver.py` using
-   the values measured before, possibly approximated by excess.
+   the values measured before, possibly approximating the minima by defect and
+   the maxima by excess.
 
 4. Transmit and/or receive a message using `src/transmit.py` or `src/receive.py`