Bumped the dependency to SVGKit to 3.0+

Author: lizhuoli

Cartfile

@@ -1,2 +1,2 @@
 github "SDWebImage/SDWebImage" ~> 5.10
-github "SVGKit/SVGKit" >= 2.1
+github "SVGKit/SVGKit" ~> 3.0

README.md

@@ -36,10 +36,16 @@ it, simply add the following line to your Podfile:
 pod 'SDWebImageSVGKitPlugin'
 ```
 
-Note: The [SVGKit](https://github.com/SVGKit/SVGKit) dependency seems does not follow sem-version and didn't not release versions frequently. You can manually specify a branch or CID dependency for it. Like below:
+#### Swift Package Manager (Xcode 11+)
 
-```
-pod 'SVGKit', :git => 'https://github.com/SVGKit/SVGKit.git', :branch => '3.x'
+SDWebImagePhotosPlugin is available through [Swift Package Manager](https://swift.org/package-manager).
+
+```swift
+let package = Package(
+    dependencies: [
+        .package(url: "https://github.com/SDWebImage/SDWebImageSVGKitPlugin.git", from: "1.4")
+    ]
+)
 ```
 
 #### Carthage

SDWebImageSVGKitPlugin.podspec

@@ -34,5 +34,5 @@ TODO: Add long description of the pod here.
   s.module_map = 'SDWebImageSVGKitPlugin/Module/SDWebImageSVGKitPlugin.modulemap'
 
   s.dependency 'SDWebImage/Core', '~> 5.10'
-  s.dependency 'SVGKit', '>= 2.1'
+  s.dependency 'SVGKit', '~> 3.0'
 end