1 files changed, 13 insertions, 4 deletions

diff --git a/README.md b/README.md
index 009f227..be4a655 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,25 @@
-<img width="150" height="150" align="left" style="float: left; margin: 0 10px 0 0;" alt="MS-DOS logo" src="https://github.com/Microsoft/MS-DOS/blob/master/msdos-logo.png">   
+<img width="150" height="150" align="left" style="float: left; margin: 0 10px 0 0;" alt="MS-DOS logo" src="https://github.com/Microsoft/MS-DOS/blob/main/msdos-logo.png">   
 
 # MS-DOS v1.25 and v2.0 Source Code
+
 This repo contains the original source-code and compiled binaries for MS-DOS v1.25 and MS-DOS v2.0.
 
 These are the same files [originally shared at the Computer History Museum on March 25th, 2014]( http://www.computerhistory.org/atchm/microsoft-ms-dos-early-source-code/) and are being (re)published in this repo to make them easier to find, reference-to in external writing and works, and to allow exploration and experimentation for those interested in early PC Operating Systems.  
 
 # License
-All files within this repo are released under the [MIT (OSI) License]( https://en.wikipedia.org/wiki/MIT_License) as per the [LICENSE file](https://github.com/Microsoft/MS-DOS/blob/master/LICENSE.md) stored in the root of this repo.
+
+All files within this repo are released under the [MIT License]( https://en.wikipedia.org/wiki/MIT_License) as per the [LICENSE file](https://github.com/Microsoft/MS-DOS/blob/main/LICENSE) stored in the root of this repo.
 
 # Contribute!
-The source files in this repo are for historical reference and will be kept static, so please **don’t send** Pull Requests suggesting any modifications to the source files, but feel free to fork this repo and experiment 😊.  
 
-If, however, you’d like to submit additional non-source content or modifications to non-source files (e.g., this README), please submit via PR, and we’ll review and consider.
+The source files in this repo are for historical reference and will be kept static, so please **don’t send** Pull Requests suggesting any modifications to the source files, but feel free to fork this repo and experiment 😊.  
 
 This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).  For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additional questions or comments.
+
+# Trademarks
+
+This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft
+trademarks or logos is subject to and must follow
+[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/legal/intellectualproperty/trademarks/usage/general).
+Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
+Any use of third-party trademarks or logos are subject to those third-party's policies.