Merge pull request #1679 from reaperhulk/libre-support

LibreSSL support
diff --git a/docs/hazmat/backends/openssl.rst b/docs/hazmat/backends/openssl.rst
index 6c3d875..4e0f628 100644
--- a/docs/hazmat/backends/openssl.rst
+++ b/docs/hazmat/backends/openssl.rst
@@ -80,4 +80,4 @@
 .. _`OpenSSL`: https://www.openssl.org/
 .. _`initializing the RNG`: https://en.wikipedia.org/wiki/OpenSSL#Predictable_keys_.28Debian-specific.29
 .. _`Yarrow`: https://en.wikipedia.org/wiki/Yarrow_algorithm
-.. _`Microsoft documentation`: http://msdn.microsoft.com/en-us/library/windows/desktop/aa379942(v=vs.85).aspx
+.. _`Microsoft documentation`: https://msdn.microsoft.com/en-us/library/windows/desktop/aa379942(v=vs.85).aspx