Docs fixes (#14)

Docs fixes

### Motivation

Docs should be correct.

### Modifications

Update docs to reflect the new version.

### Result

N/A

### Test Plan

N/A


Reviewed by: dnadoba

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#14

Author: czechboy0

README.md

@@ -16,7 +16,7 @@ Add the package dependency in your `Package.swift`:
 ```swift
 .package(
     url: "https://github.com/swift-server/swift-openapi-async-http-client", 
-    .upToNextMinor(from: "0.1.0")
+    .upToNextMinor(from: "0.2.0")
 ),
 ```
 

Sources/OpenAPIAsyncHTTPClient/Documentation.docc/Documentation.md

@@ -20,7 +20,7 @@ Add the package dependency in your `Package.swift`:
 ```swift
 .package(
     url: "https://github.com/swift-server/swift-openapi-async-http-client", 
-    .upToNextMinor(from: "0.1.0")
+    .upToNextMinor(from: "0.2.0")
 ),
 ```