doc: update MIT license URL

Author: fanquake

README.md

@@ -19,7 +19,7 @@ License
 -------
 
 Bitcoin Core is released under the terms of the MIT license. See [COPYING](COPYING) for more
-information or see https://opensource.org/licenses/MIT.
+information or see https://opensource.org/license/MIT.
 
 Development Process
 -------------------

src/clientversion.cpp

@@ -96,6 +96,6 @@ std::string LicenseInfo()
            "\n" +
            "\n" +
            _("This is experimental software.") + "\n" +
-           strprintf(_("Distributed under the MIT software license, see the accompanying file %s or %s"), "COPYING", "<https://opensource.org/licenses/MIT>").translated +
+           strprintf(_("Distributed under the MIT software license, see the accompanying file %s or %s"), "COPYING", "<https://opensource.org/license/MIT>").translated +
            "\n";
 }