Misc updates.

Author: sharpjs

Coverlet.runsettings

@@ -5,6 +5,7 @@
 -->
 <!--
   Documentation:
+  https://learn.microsoft.com/en-us/visualstudio/test/configure-unit-tests-by-using-a-dot-runsettings-file
   https://github.com/tonerdo/coverlet/blob/master/Documentation/VSTestIntegration.md
 -->
 <RunSettings>

README.md

@@ -12,7 +12,7 @@ Prequel is a minimal SQLCMD-compatible preprocessor.
 [![NuGet](https://img.shields.io/nuget/v/Prequel.svg)](https://www.nuget.org/packages/Prequel)
 [![NuGet](https://img.shields.io/nuget/dt/Prequel.svg)](https://www.nuget.org/packages/Prequel)
 
-- **Stable:**     in private use for years with very few reported defects.
+- **Stable:**     in public and private use for years with very few reported defects.
 - **Tested:**     100% coverage by automated tests.
 - **Documented:** IntelliSense on everything.