Update readme.md

Author: SimonCropp

readme.md

@@ -9,7 +9,7 @@ The package targets `netstandard2.0` and is designed to support the following ru
 
  * `net461`, `net462`, `net47`, `net471`, `net472`, `net48`, `net481`
  * `netcoreapp2.0`, `netcoreapp2.1`, `netcoreapp3.0`, `netcoreapp3.1`
- * `net5.0`, `net6.0`, `net7.0`, `net8.0`, `net9.0`
+ * `net5.0`, `net6.0`, `net7.0`, `net8.0`, `net9.0`, `net10.0`
 
 
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