bump version 0.2.12

CHANGELOG.md

@@ -87,4 +87,7 @@
 * Update TextInputConfiguration autocorrect to true in stable branch.
 
 ## [0.2.11]
-* Fix static analysis error.
+* Fix static analysis error.
+
+## [0.2.12]
+* Support placeholder.

lib/models/documents/document.dart

@@ -249,7 +249,9 @@ class Document {
     }
 
     Delta delta = node.toDelta();
-    return delta.length == 1 && delta.first.data == '\n' && delta.first.key == 'insert';
+    return delta.length == 1 &&
+        delta.first.data == '\n' &&
+        delta.first.key == 'insert';
   }
 }