[PATCH] README: add OpenSSL exception

[PATCH] README: add OpenSSL exception

[Eric Wong]

As evidenced by the presence of :wait_readable and :wait_writable
combinations in our case/when statements, we may support TLS in the
future.  So add an exception for supporting the "openssl" extension
in the C standard library.

However, GnuTLS support ought to be an option, too.
---
 README | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/README b/README
index 71bbd0e..1db5284 100644
--- a/README
+++ b/README
@@ -147,4 +147,15 @@ for more details.
 You should have received a copy of the GNU General Public License along
 with this program; if not, see https://www.gnu.org/licenses/gpl-3.0.txt
 
+Additional permission under GNU GPL version 3 section 7:
+
+    If you modify this program, or any covered work, by linking or
+    combining it with the OpenSSL project's OpenSSL library (or a
+    modified version of that library), containing parts covered by the
+    terms of the OpenSSL or SSLeay licenses, the copyright holder(s)
+    grants you additional permission to convey the resulting work.
+    Corresponding Source for a non-source form of such a combination
+    shall include the source code for the parts of OpenSSL used as well
+    as that of the covered work.
+
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-- 
EW