Update Guard.cs

src/Squidex.Infrastructure/Guard.cs

@@ -116,7 +116,7 @@ namespace Squidex.Infrastructure
         {
             if (target.CompareTo(lower) < 0)
             {
-                throw new ArgumentException($"Value must be greater or equals than {lower}", parameterName);
+                throw new ArgumentException($"Value must be greater than or equal to {lower}", parameterName);
             }
         }
 
@@ -136,7 +136,7 @@ namespace Squidex.Infrastructure
         {
             if (target.CompareTo(upper) > 0)
             {
-                throw new ArgumentException($"Value must be less or equals than {upper}", parameterName);
+                throw new ArgumentException($"Value must be less than or equal to {upper}", parameterName);
             }
         }