Update SECURITY.md

Author: KirillOsenkov

SECURITY.md

@@ -1,5 +1,12 @@
 # Security Policy
 
+## Please update to 1.0.32 or newer
+
+Ensure that you have this commit:
+https://github.com/KirillOsenkov/SourceBrowser/commit/23dc70b28af2baf082904688027b7314403844f7
+
+If you maintain SourceBrowser-generated websites please update scripts.js so that it contains the above change (or redeploy using the latest version).
+
 ## Supported Versions
 
 The .NET Core and ASP.NET Core support policy, including supported versions can be found at the [.NET Core Support Policy Page](https://dotnet.microsoft.com/platform/support/policy/dotnet-core).
@@ -12,4 +19,4 @@ original message. Further information, including the MSRC PGP key, can be found
 
 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.