Merge pull request #75 from borro0/patch-1

Fix typo in title of appium README.adoc

src/Avalonia.Samples/Testing/TestableApp.Appium/README.adoc

@@ -1,4 +1,4 @@
-= Testing with Headless XUnit
+= Testing with Appium
 // --- D O N ' T    T O U C H   T H I S    S E C T I O N ---
 :toc:
 :toc-placement!: