Add US English hyphenation patterns.

The contents are a copy of upstream SVN revision 689:
svn://tug.org/texhyphen/trunk/hyph-utf8/tex/generic/hyph-utf8/patterns/txt/@689

Change-Id: If4e73fed4a8b61cdbcaf8a36c5c84d7cf18268fa
diff --git a/README.android b/README.android
new file mode 100644
index 0000000..59e68be
--- /dev/null
+++ b/README.android
@@ -0,0 +1,11 @@
+URL: svn://tug.org/texhyphen/trunk/hyph-utf8/tex/generic/hyph-utf8/patterns/txt/@689
+Version: r689
+License: notice
+License File: NOTICE
+
+Description:
+Hyphenation patterns for automatic hyphenation from TeX hyphenation
+patterns project at http://tug.org/tex-hyphen/.
+
+Local Modifications:
+Only the US English pattern is included.