Create README.md

Author: Lexz-08

README.md

@@ -0,0 +1,45 @@
+# CLIHelper
+## Description
+Provides simpler management and checking of command-line arguments in an application.
+## How To Use
+```csharp
+using CLIHelper;
+
+internal class Program
+{
+    private enum MySwitch
+    {
+        // random switches for example
+        b,
+        v,
+        x,
+        
+        // as long as the argument matches the name, it will parse
+        debug
+    }
+
+    // attributes can be on any one method that is marked as just 'static'
+    [Argument("arg1", CLIType.String, 1)]
+    [Switch("arg12", typeof(MySwitch), SwitchIdentifier.Slash, 2)]
+    [OptionalArgument("arg3", CLIType.String)]
+    [OptionalSwitch("arg4", typeof(MySwitch), SwitchIdentifier.Hyphen)]
+    static void Main()
+    {
+        var args = CLI.GetArguments(); // will return null if any parsing errors occurred, which in turn will be printed to the console
+        
+        if (args != null)
+        {
+            // and now do what you need with your arguments
+            Console.WriteLine(args["arg1"].ToString());
+            Console.WriteLine(args["arg2"].GetEnumValue<MySwitch>());
+        }
+    }
+}
+```
+## To-Do
+- [ ] Check for entry method named `Main` to ensure clarity with attribute usage
+- [ ] Print out available arguments if none are provided
+- [ ] Make use of `Description` metadata in `CLIAttribute`
+- [ ] Replace `_` in enum value names with `-` for complex switch arguments
+## Download
+[CLIHelper.dll](https://github.com/Lexz-08/CLIHelper/releases/latest/download/CLIHelper.dll)