fix: Fix reference

Author: briannadoubt

Package.swift

@@ -10,8 +10,8 @@ let package = Package(
 	targets: [
 		.target(
 			name: "SSPullToRefresh",
-			dependencies: [],
 			path: "./SSPullToRefresh",
+            exclude: ["./Info.plist", "../SSPullToRefresh.podspec"],
             publicHeadersPath: "."
 		),
 	]

SSPullToRefresh/SSPullToRefresh.h

@@ -15,10 +15,10 @@ FOUNDATION_EXPORT double SSPullToRefreshVersionNumber;
 FOUNDATION_EXPORT const unsigned char SSPullToRefreshVersionString[];
 
 // Main pull to refresh view. This class contains all of the pulling logic.
-#import <SSPullToRefresh/SSPullToRefreshView.h>
+#import "SSPullToRefreshView.h"
 
 // Default content view. Similar to Facebook.
-#import <SSPullToRefresh/SSPullToRefreshDefaultContentView.h>
+#import "SSPullToRefreshDefaultContentView.h"
 
 // Simple content view. Similar to Path.
-#import <SSPullToRefresh/SSPullToRefreshSimpleContentView.h>
+#import "SSPullToRefreshSimpleContentView.h"