Prepared v0.1.0 and updated Android SDK to v5.4.0

* Increased version number to v0.1.0 and updated changelog

* Updated readme

* Applied changes from docs team

* Replaced alpha with beta and added instant component to supported components list

* Added beta banner

* Updated to Android SDK v5.4.0

* Added entry for CSE support

* Adjusted readme based on code review

CHANGELOG.md

@@ -1,12 +1,16 @@
-## 0.1.0 (in development)
+## 0.1.0
 
-* ⚠ **Breaking Change**: Changed ResultCode into an enum. Please adjust your usage of the PaymentResult (PaymentSessionFinished or PaymentAdvancedFinished). 
-* ⚠ **Breaking Change**: Change the paymentMethodsResponse type from String to Map<String, dynamic>.  
+* ⚠ **Breaking Change**: Changed ResultCode into an enum. Please adjust your usage of the
+  PaymentResult (PaymentSessionFinished or PaymentAdvancedFinished).
+* ⚠ **Breaking Change**: Changed the payment methods type from String to Map<String, dynamic> to
+  support JSON data directly.
+* ⚠ **Breaking Change**: Updated AdvancedCheckout class and removed deprecated implementation.
 * Updated iOS SDK to v5.8.0.
-* Updated Android SDK to v5.3.1.
-* Added support for customizing Drop-in and card component.
+* Updated Android SDK to v5.4.0.
+* Added support for customizing Drop-in and Card Component.
 * Added option to adjust Drop-in preselected payment method title.
-* Replaced advanced checkout class with the preview implementation.
+* Added support for Instant Component.
+* Added support for Client-Side Encryption (CSE).
 
 ## 0.0.3