Use spaces in readme

Author: florianpircher

README.md

@@ -10,11 +10,11 @@ The `Parser` type provides a simple parser that can be used to parse arbitrary c
 var parser = Parser(subject: data)
 
 guard let version = parser.pop() else {
-	throw DecodingError.missingVersion
+    throw DecodingError.missingVersion
 }
 guard let string = String(bytes: parser.read(while: { $0 != 0 }), encoding: .utf8),
       parser.pop(0) else {
-	throw DecodingError.invalidStringValue
+    throw DecodingError.invalidStringValue
 }
 ```
 
@@ -24,17 +24,17 @@ Add `swift-collection-parser` as a dependency to your package:
 
 ```swift
 let package = Package(
-	// ...
-	dependencies: [
-		.package(url: "https://github.com/Formkunft/swift-collection-parser", .upToNextMajor(from: "2.0.0")),
-	],
-	targets: [
-		.target(
-			// ...
-			dependencies: [
-				.product(name: "CollectionParser", package: "swift-collection-parser"),
-			]),
-	]
+    // ...
+    dependencies: [
+        .package(url: "https://github.com/Formkunft/swift-collection-parser", .upToNextMajor(from: "2.0.0")),
+    ],
+    targets: [
+        .target(
+            // ...
+            dependencies: [
+                .product(name: "CollectionParser", package: "swift-collection-parser"),
+            ]),
+    ]
 )
 ```