Add a proper readme file.

README.md

@@ -1,3 +1,36 @@
-# libmpdclient
+# libmpdclient-swift
+
+This is a variant of libmpdclient for use inside a swift application. It's functionally the same as [libmpdclient](https://github.com/MusicPlayerDaemon/libmpdclient),
+with changes to the directory structure to turn it into a swift package.
+
+## Requirements
+
+* Xcode 11
+* Swift 5.0
+
+## Installation
+
+libmpdclient-swift doesn't contain any external dependencies.
+
+Currently only build and usage via swift package manager is supported:
+
+### [Swift Package Manager](https://github.com/apple/swift-package-manager)
+
+The easiest way to add the library is directly from within XCode (11). Alternatively you can create a `Package.swift` file. 
+
+```swift
+// swift-tools-version:5.0
+
+import PackageDescription
+
+let package = Package(
+  name: "MyProject",
+  dependencies: [
+  .package(url: "https://github.com/katoemba/libmpdclient-swift.git", from: "0.21.17")
+  ],
+  targets: [
+    .target(name: "MyProject", dependencies: ["libmpdclient"])
+  ]
+)
+```
 
-A description of this package.

libmpdclient.xcodeproj/project.pbxproj

@@ -155,6 +155,7 @@
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 		C543F6232346734F00E5CE84 /* isend.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = isend.h; sourceTree = "<group>"; };
 		C543F6242346734F00E5CE84 /* internal.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = internal.h; sourceTree = "<group>"; };
+		C5C6CB5623B5F72E00767B41 /* README.md */ = {isa = PBXFileReference; lastKnownFileType = net.daringfireball.markdown; path = README.md; sourceTree = "<group>"; };
 		C5F9176123B57E1300AD044D /* partition.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = partition.c; sourceTree = "<group>"; };
 		C5F9176223B57E1300AD044D /* cpartition.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = cpartition.c; sourceTree = "<group>"; };
 		C5F9176323B57E1300AD044D /* binary.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = binary.h; sourceTree = "<group>"; };
@@ -234,6 +235,7 @@
 		OBJ_5 = {
 			isa = PBXGroup;
 			children = (
+				C5C6CB5623B5F72E00767B41 /* README.md */,
 				OBJ_6 /* Package.swift */,
 				OBJ_7 /* Sources */,
 				OBJ_60 /* Tests */,