fix up ze licenses

LICENSE.txt

@@ -393,29 +393,3 @@ the avoidance of doubt, this paragraph does not form part of the
 public licenses.
 
 Creative Commons may be contacted at creativecommons.org.
-
-
-=======================================================================
-
-
-MIT License
-
-Copyright (c) 2017 GitHub
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

README.md

@@ -11,4 +11,4 @@ If you want to suggest edits to an existing topic page, or curate a new Topic pa
 
 ## Licenses
 
-Content is released under [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/). Code is released under [MIT](LICENSE.txt). See [notices](notices.md) for complete details.
+Content is released under [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/). See [notices](notices.md) for complete details, including attribution guidelines, contribution terms, and software and third-party licenses and permissions.

notices.md

@@ -1 +1,15 @@
 TODO
+
+- [ ] @bluemazzoo: Explain third-party permissions for externally-sourced Topic images
+
+## Licenses
+
+Content is copyright © Explore content authors, released under [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/), which gives you permission to use content for almost any purpose (but does not grant you any trademark permissions), so long as you note the license and give credit, such as follows:
+
+> Content based on [github.com/github/explore](https://github.com/github/explore) used under the [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/) license.
+
+Code, including source files and code samples if any in the content, is released under [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/).
+
+This means you can use the code and content in this repository except for GitHub trademarks in your own projects. When using the GitHub logos, be sure to follow the [GitHub logo guidelines](https://github.com/logos).
+
+When you contribute to this repository you are doing so under the above licenses.