[PATCH] Documentation: add a README file

The documentation is in AsciiDoc format: it should be written somewhere
with links to AsciiDoc documentation so that it became easy to find
how to write documentation for Git.

Signed-off-by: Yann Droneaud <redacted>
---
 Documentation/README | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 Documentation/README

diff --git a/Documentation/README b/Documentation/README
new file mode 100644
index 0000000..c41734c
--- /dev/null
+++ b/Documentation/README

@@ -0,0 +1,13 @@
+Documentation
+=============
+
+Most of the Git documentation is in AsciiDoc format,
+a lightweight markup text language.
+
+AsciiDoc formatted files can be translated to man pages,
+HTML, DocBook or PDF documents.
+
+See:
+- http://asciidoc.org/
+- https://git.wiki.kernel.org/index.php/AsciiDoc
+

-- 
1.7.11.7