trail: Mark this as 0.20

apps/trail/ChangeLog

@@ -1,4 +1,4 @@
 0.01: New App!
 0.10: Redesign to make screen updates fast
 0.11: bugfix (demo mode was enabled by default)
-
+0.20: 

apps/trail/README.md

@@ -8,13 +8,27 @@ After GPS fix is acquired, it displays familiar arrow with road in
 front of you. It never stores whole track in memory, so it should work
 with fairly large files.
 
-GPX files can be obtained from various services, www.mapy.cz is one of
-them (actually uses openstreetmap data for most of the world).
+On startup, you select track you want to work with. After it is
+loaded, few screens are available.
+
+1) "Follow" -- displays arrow on the track. Should work well as you
+follow the route. If you get lost, press top right corner to "recover".
+
+2) "Map" -- can draw a track around your current position. Press top
+right corner to redraw.
+
+3) "Statistics"
+
+Press touchscreen corners to select functions
+
+Zoom    Function
+Prev screen Next
 
 ## Preparing data
 
-"gpx2egt.sh < file.gpx > t.name.egt" can be used to prepare data, then
-upload it to watch.
+GPX files can be obtained from various services, www.mapy.cz is one of
+them (actually uses openstreetmap data for most of the world).
 
-# [rt].*.egt
-# deal with "end of trail"
+"gpx2egt.sh < file.gpx > t.name.egt" can be used to prepare data, then
+upload it to watch. Filename has to be in t.*.egt or r.*.egt format
+(suggestion is to use t.* for track "there" and r.* for return track).

apps/trail/metadata.json

@@ -1,6 +1,6 @@
 { "id": "trail",
   "name": "Trail Rail",
-  "version":"0.11",
+  "version":"0.20",
   "description": "Follow a GPX track in car or on bike",
   "icon": "app.png",
   "readme": "README.md",