Fix swift package index build

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 5.8
+// swift-tools-version: 5.7
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
@@ -9,24 +9,13 @@ let package = Package(
         .iOS(.v12)
     ],
     products: [
-        // Products define the executables and libraries a package produces, and make them visible to other packages.
         .library(
             name: "DPCharts",
             targets: ["DPCharts"]),
     ],
-    dependencies: [
-        // Dependencies declare other packages that this package depends on.
-        // .package(url: /* package url */, from: "1.0.0"),
-    ],
     targets: [
-        // Targets are the basic building blocks of a package. A target can define a module or a test suite.
-        // Targets can depend on other targets in this package, and on products in packages this package depends on.
         .target(
             name: "DPCharts",
-            dependencies: [],
             path: "Sources/DPCharts"),
-        .testTarget(
-            name: "DPChartsTests",
-            dependencies: ["DPCharts"]),
     ]
 )

README.md

@@ -2,14 +2,13 @@
 <img alt="logo" src="./Assets/DPChartsLogo.png">
 </p>
 
-![Swift](https://img.shields.io/badge/Swift-5.7_|5.8-orange?style=flat-square)
-![Platform](https://img.shields.io/badge/Platform-iOS-blue?style=flat-square)
-![Swift PM](https://img.shields.io/badge/Swift_Package_Manager-compatible-orange?style=flat-square)
+[![Swift](https://img.shields.io/endpoint?url=https://swiftpackageindex.com/api/packages/danielepantaleone/DPCharts/badge?type=swift-versions&style=flat-square)](https://swiftpackageindex.com/danielepantaleone/DPCharts)
+[![Platform](https://img.shields.io/endpoint?url=https://swiftpackageindex.com/api/packages/danielepantaleone/DPCharts/badge?type=platforms&style=flat-square)](https://swiftpackageindex.com/danielepantaleone/DPCharts)
 ![CocoaPods](https://img.shields.io/cocoapods/v/DPCharts.svg?style=flat-square)
 ![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/danielepantaleone/DPCharts?style=flat-square)
 ![GitHub](https://img.shields.io/github/license/danielepantaleone/DPCharts?style=flat-square)
 
-DPCharts is a Swift-based lightweight framework designed specifically for rendering charts on iOS. Its main objective is to create a user-friendly chart library that follows the iOS delegation pattern approach. Each chart within the framework is responsible solely for presenting data, rather than managing the data itself. To manage the data, you provide the chart with a datasource object (an object conforming to the chart datasource protocol). Additionally, charts manage gesture interaction, and touch gesture events are delivered to the configured delegate (an object conforming to the chart delegate protocol) when applicable.
+DPCharts is a Swift-based lightweight framework designed specifically for rendering charts on iOS. Its main objective is to create a user-friendly chart library that follows the iOS delegation pattern approach. Each chart within the framework is responsible solely for presenting data, rather than managing the data itself. To manage the data, you provide the chart with a datasource object (an object conforming to the chart datasource protocol). Additionally, charts manage gesture interaction, and touch gesture events are delivered to the configured delegate (an object conforming to the chart delegate protocol).
 
 ## Table of contents