convert license to RST to restore indirect links (#366)

Author: mr-c

LICENSE.md

@@ -0,0 +1,59 @@
+Licenses
+========
+
+Instructional Material
+----------------------
+
+All Common Workflow Language project instructional material and changes
+to the structure are also made available under the `Creative Commons
+Attribution license <cc-by-human_>`_. The following is a human-readable summary of (and
+not a substitute for) the `full legal text of the CC BY 4.0 license <cc-by-legal_>`_.
+
+You are free:
+
+-  to **Share**—copy and redistribute the material in any medium or
+   format
+-  to **Adapt**—remix, transform, and build upon the material
+
+for any purpose, even commercially.
+
+The licensor cannot revoke these freedoms as long as you follow the
+license terms:
+
+-  **Attribution**—You must give appropriate credit (mentioning that
+   your work is derived from work that is Copyright © the Common
+   Workflow Language project, and, where practical, linking to
+   https://www.commonwl.org/ ), provide a `link to the license <cc-by-human_>`_, and
+   indicate if changes were made. You may do so in any reasonable
+   manner, but not in any way that suggests the licensor endorses you or
+   your use.
+
+-  **No additional restrictions**—You may not apply legal terms or
+   technological measures that legally restrict others from doing
+   anything the license permits. With the understanding that:
+
+   -  You do not have to comply with the license for elements of the
+      material in the public domain or where your use is permitted by an
+      applicable exception or limitation.
+   -  No warranties are given. The license may not give you all of the
+      permissions necessary for your intended use. For example, other
+      rights such as publicity, privacy, or moral rights may limit how
+      you use the material.
+
+Software
+--------
+
+Except where otherwise noted, the example programs and other software
+provided by Common Workflow Language project are made available under
+the `OSI`_-approved `Apache 2.0 license <Apache-2.0_>`_.
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an “AS IS” BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+.. _cc-by-human: https://creativecommons.org/licenses/by/4.0/
+.. _cc-by-legal: https://creativecommons.org/licenses/by/4.0/legalcode
+.. _OSI: https://opensource.org
+.. _Apache-2.0: https://opensource.org/licenses/Apache-2.0