Updated pubspec.yaml for the pub.dev release

Author: jeroen1602

pubspec.yaml

@@ -1,8 +1,7 @@
 name: flutter_web_bluetooth
 description: A library to use the web bluetooth api.
 version: 0.0.1
-author: Jeroen1602
-homepage: https://github.com/jeroen1602/flutter_web_bluetooth/blob/master/pubspec.yaml
+homepage: https://github.com/jeroen1602/flutter_web_bluetooth/
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -14,7 +13,7 @@ dependencies:
   flutter_web_plugins:
     sdk: flutter
   js: ^0.6.3
-  rxdart: 0.26.0
+  rxdart: ^0.26.0
 
 dev_dependencies:
   flutter_test: