Add wiki documentation to repository

Add a docs/ directory that contains the contents of the SeaBIOS wiki
in markdown format.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
diff --git a/docs/README b/docs/README
new file mode 100644
index 0000000..430e0fe
--- /dev/null
+++ b/docs/README
@@ -0,0 +1,5 @@
+This directory contains SeaBIOS documentation as found on the SeaBIOS
+wiki.  All the files in this directory (with the exclusion of this
+README file) correspond to a page on the wiki.
+
+The documentation files use markdown syntax.