0.20220703: update tunnel tracking

Author: zvezdochiot

README.md

@@ -12,11 +12,13 @@ Spreadsheets:
 * [conformaltrans] - conformal transformation: 1-5 power.
 * [dms] - DDMMSS to DD.DDDD transform.
 * [ellipsoid] - the Gauss-Krüger and other transformation.
+* [tunnel] - tunnel tracking.
 * [xyh] - the solution of the problem of determining the station and orienting by measurements or the relative coordinates.
 * distance_to_plane.gnumeric - processing facade geodetic survey.
 * ols-one-sys.gnumeric - finding a plane for a set of points.
 * ols-orientir.gnumeric - direct geodetic intersection (in azimuths).
-* ols-tonnel.gnumeric - tunnel tracking.
+
+---
 
 URL: https://github.com/Geo-Linux-Calculations/gnumeric-ols