Fix Markdownlint issues (#2054)

MD009/no-trailing-spaces, MD034/no-bare-urls, MD047/single-trailing-newline

Author: MSDN-WhiteKnight

SECURITY.md

@@ -6,10 +6,10 @@ The .NET Core and ASP.NET Core support policy, including supported versions can
 
 ## Reporting a Vulnerability
 
-Security issues and bugs should be reported privately to the Microsoft Security Response Center (MSRC), either by emailing [email protected] or via the portal at https://msrc.microsoft.com. 
-You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your 
+Security issues and bugs should be reported privately to the Microsoft Security Response Center (MSRC), either by emailing [email protected] or via the portal at <https://msrc.microsoft.com>.
+You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we received your
 original message. Further information, including the MSRC PGP key, can be found in the [MSRC Report an Issue FAQ](https://www.microsoft.com/en-us/msrc/faqs-report-an-issue).
 
 Reports via MSRC may qualify for the .NET Core Bug Bounty. Details of the .NET Core Bug Bounty including terms and conditions are at [https://aka.ms/corebounty](https://aka.ms/corebounty).
 
-Please do not open issues for anything you think might have a security implication.
+Please do not open issues for anything you think might have a security implication.

ThirdPartyNotices.md

@@ -8,9 +8,9 @@ see the [LICENSE](LICENSE) file, and grant you a license to any code in the repo
 Microsoft, Windows, Microsoft Azure and/or other Microsoft products and services referenced in the documentation
 may be either trademarks or registered trademarks of Microsoft in the United States and/or other countries.
 The licenses for this project do not grant you rights to use any Microsoft names, logos, or trademarks.
-Microsoft's general trademark guidelines can be found at http://go.microsoft.com/fwlink/?LinkID=254653.
+Microsoft's general trademark guidelines can be found at <http://go.microsoft.com/fwlink/?LinkID=254653>.
 
-Privacy information can be found at https://privacy.microsoft.com/
+Privacy information can be found at <https://privacy.microsoft.com/>
 
 Microsoft and any contributors reserve all others rights, whether under their respective copyrights, patents,
 or trademarks, whether by implication, estoppel or otherwise.