add getgrid.c and amend README.md accordinglyHEADmaster

1 files changed, 12 insertions, 0 deletions

diff --git a/README.md b/README.md
index f9de941..86a4292 100644
--- a/README.md
+++ b/README.md
@@ -36,6 +36,18 @@ The latter can be useful to check if a QSO with another ham radio
 station qualifies for one of the thousand miles per Watt awards.
 
 
+`getgrid` -- compute the grid locator associated to lat-long coordinates
+========================================================================
+
+`getgrid` is a simple tool to compute the grid locator associated to a
+latitude/longitude pair. The coordinates must be in degrees. 
+
+Usage: getgrid <lat> <lon>
+
+Example: 
+
+    getgrid 
+
 Dependencies
 ============