README: disambiguate what to distribute source of

Indicate that if you make changes to libgit2 that you must distribute
the source _to libgit2_, not the source _of your program_.

diff --git a/README.md b/README.md
index 8ea787b3e9426bae658fa324daa1716283b1412d..5aa8ccb03e751de13bf438b3d230a82d80d3c718 100644 (file)
--- a/README.md
+++ b/README.md
@@ -244,7 +244,7 @@ License
 
 `libgit2` is under GPL2 **with linking exception**. This means you can link to
 and use the library from any program, proprietary or open source; paid or
-gratis.  However, you cannot modify libgit2 and distribute it without
-supplying the source.
+gratis.  However, if you modify libgit2 itself, you must distribute the
+source to your modified version of libgit2.
 
 See the [COPYING file](COPYING) for the full license text.