➕ update engine version constrain

CHANGELOG.md

@@ -1,3 +1,8 @@
+## [0.0.3] - 2020-8-1
+
+* Update version constrain
+
+
 ## [0.0.2] - 2020-8-1
 
 * Update readme

example/pubspec.lock

@@ -169,7 +169,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.0.2"
+    version: "0.0.3"
 sdks:
   dart: ">=2.9.0-14.0.dev <3.0.0"
-  flutter: ">=1.17.0 <2.0.0"
+  flutter: ">=1.20.0 <2.0.0"

pubspec.lock

@@ -158,4 +158,4 @@ packages:
     version: "2.0.8"
 sdks:
   dart: ">=2.9.0-14.0.dev <3.0.0"
-  flutter: ">=1.17.0 <2.0.0"
+  flutter: ">=1.20.0 <2.0.0"

pubspec.yaml

@@ -1,11 +1,11 @@
 name: xterm
-description: Xterm.dart is a fast and fully-featured terminal emulator for Flutter applications, with support for mobile and desktop platforms.
-version: 0.0.2
+description: xterm.dart is a fast and fully-featured terminal emulator for Flutter applications, with support for mobile and desktop platforms.
+version: 0.0.3
 homepage: https://github.com/TerminalStudio/xterm.dart
 
 environment:
   sdk: ">=2.7.0 <3.0.0"
-  flutter: ">=1.17.0 <2.0.0"
+  flutter: ">=1.20.0 <2.0.0"
 
 dependencies:
   convert: ^2.1.1