Fix indent

Sources/JavaScriptKit/FundamentalObjects/JSObject.swift

@@ -69,7 +69,7 @@ public class JSObject: Equatable {
         set { setJSValue(this: self, index: Int32(index), value: newValue) }
     }
 
-  /// Return `true` if this value is an instance of the passed `constructor` function.
+    /// Return `true` if this value is an instance of the passed `constructor` function.
     /// - Parameter constructor: The constructor function to check.
     /// - Returns: The result of `instanceof` in the JavaScript environment.
     public func isInstanceOf(_ constructor: JSFunction) -> Bool {