[ntpsec commit] Add a link to "Introduction to Time Service"...

[Eric S. Raymond]

Module:    ntpsec
Branch:    master
Commit:    cce7c7bb9416b3c325094a62c368dcd873c1bb17
Changeset: http://git.ntpsec.org/ntpsec/commit/?id=cce7c7bb9416b3c325094a62c368dcd873c1bb17

Author:    Eric S. Raymond <esr at thyrsus.com>
Date:      Wed Oct 21 14:00:06 2015 -0400

Add a link to "Introduction to Time Service"...

...it stays in GPSD for now but can move to this distribution when we ship.

---

 docs/index.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/index.txt b/docs/index.txt
index 5cbf911..08144b5 100644
--- a/docs/index.txt
+++ b/docs/index.txt
@@ -54,6 +54,10 @@ LANs and up to a few tens of milliseconds on WANs. Typical NTP
 configurations utilize multiple redundant servers and diverse network
 paths in order to achieve high accuracy and reliability.
 
+For background on the problem NTP solves, see
+link:http://www.catb.org/gpsd/time-service-intro.html[Introduction to
+Time Service].
+
 [[differences]]
 == Differences from NTP Classic ==