doc: add some crossrefs between manual pages

diff --git a/Documentation/git.txt b/Documentation/git.txt
index a0f1ede86603b181c09dc89bc1a9e634c92b273a..56278451140b49fa13332ebf74f58a6713df2c26 100644 (file)
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -43,9 +43,18 @@ unreleased) version of Git, that is available from the 'master'
 branch of the `git.git` repository.
 Documentation for older releases are available here:
 
-* link:v2.0.3/git.html[documentation for release 2.0.3]
+* link:v2.1.3/git.html[documentation for release 2.1.3]
 
 * release notes for
+  link:RelNotes/2.1.3.txt[2.1.3],
+  link:RelNotes/2.1.2.txt[2.1.2],
+  link:RelNotes/2.1.1.txt[2.1.1],
+  link:RelNotes/2.1.0.txt[2.1].
+
+* link:v2.0.4/git.html[documentation for release 2.0.4]
+
+* release notes for
+  link:RelNotes/2.0.4.txt[2.0.4],
   link:RelNotes/2.0.3.txt[2.0.3],
   link:RelNotes/2.0.2.txt[2.0.2],
   link:RelNotes/2.0.1.txt[2.0.1],
@@ -446,6 +455,11 @@ example the following invocations are equivalent:
        given will override values from configuration files.
        The <name> is expected in the same format as listed by
        'git config' (subkeys separated by dots).
++
+Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets
+`foo.bar` to the boolean true value (just like `[foo]bar` would in a
+config file). Including the equals but with an empty value (like `git -c
+foo.bar= ...`) sets `foo.bar` to the empty string.
 
 --exec-path[=<path>]::
        Path to wherever your core Git programs are installed.