documentation: add tutorial for first contribution

diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 642ce943c1796211568e18f09c105785909b192b..9cf983d24d630a78427798f60c5d6f45b0b64c19 100644 (file)
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -270,13 +270,13 @@ depending on a few rules:
 +
 --
 1. If the starting point is specified as `ref@{Nth}`, show the index
-format.
+   format.
 +
 2. If the starting point was specified as `ref@{now}`, show the
-timestamp format.
+   timestamp format.
 +
 3. If neither was used, but `--date` was given on the command line, show
-the timestamp in the format requested by `--date`.
+   the timestamp in the format requested by `--date`.
 +
 4. Otherwise, show the index format.
 --
@@ -730,15 +730,20 @@ specification contained in <path>.
 +
 The form '--filter=tree:<depth>' omits all blobs and trees whose depth
 from the root tree is >= <depth> (minimum depth if an object is located
-at multiple depths in the commits traversed). Currently, only <depth>=0
-is supported, which omits all blobs and trees.
+at multiple depths in the commits traversed). <depth>=0 will not include
+any trees or blobs unless included explicitly in the command-line (or
+standard input when --stdin is used). <depth>=1 will include only the
+tree and blobs which are referenced directly by a commit reachable from
+<commit> or an explicitly-given object. <depth>=2 is like <depth>=1
+while also including trees and blobs one more level removed from an
+explicitly-given commit or tree.
 
 --no-filter::
        Turn off any previous `--filter=` argument.
 
 --filter-print-omitted::
        Only useful with `--filter=`; prints a list of the objects omitted
-       by the filter.  Object IDs are prefixed with a ``~'' character.
+       by the filter.  Object IDs are prefixed with a ``~'' character.
 
 --missing=<missing-action>::
        A debug option to help with future "partial clone" development.
@@ -831,6 +836,13 @@ Note that the `-local` option does not affect the seconds-since-epoch
 value (which is always measured in UTC), but does switch the accompanying
 timezone value.
 +
+`--date=human` shows the timezone if the timezone does not match the
+current time-zone, and doesn't print the whole date if that matches
+(ie skip printing year for dates that are "this year", but also skip
+the whole date itself if it's in the last few days and we can just say
+what weekday it was).  For older dates the hour and minute is also
+omitted.
++
 `--date=unix` shows the date as a Unix epoch timestamp (seconds since
 1970).  As with `--raw`, this is always in UTC and therefore `-local`
 has no effect.