clean up docs for two rules
diff --git a/lib/src/rules/avoid_as.dart b/lib/src/rules/avoid_as.dart
index 6b4903a..818c629 100644
--- a/lib/src/rules/avoid_as.dart
+++ b/lib/src/rules/avoid_as.dart
@@ -11,8 +11,6 @@
 
 const _details = r'''
 
-From the [flutter style guide](https://github.com/flutter/engine/blob/master/sky/specs/style-guide.md):
-
 **AVOID** using `as`.
 
 If you know the type is correct, use an assertion or assign to a more
@@ -27,14 +25,6 @@
 
 **GOOD:**
 ```
-Person person = pm;
-person.firstName = 'Seth';
-```
-
-or
-
-**GOOD:**
-```
 if (pm is Person)
   pm.firstName = 'Seth';
 ```
@@ -46,7 +36,6 @@
 try {
    (pm as Person).firstName = 'Seth';
 } on CastError { }
-
 ```
 
 Note that an exception is made in the case of `dynamic` since the cast has no
diff --git a/lib/src/rules/prefer_const_declarations.dart b/lib/src/rules/prefer_const_declarations.dart
index 7732135..3494d9f 100644
--- a/lib/src/rules/prefer_const_declarations.dart
+++ b/lib/src/rules/prefer_const_declarations.dart
@@ -20,19 +20,19 @@
 
 **GOOD:**
 ```
-const o = const [];
+const o = <int>[];
 
 class A {
-  static const o = const [];
+  static const o = <int>[];
 }
 ```
 
 **BAD:**
 ```
-final o = const [];
+final o = const <int>[];
 
 class A {
-  static final o = const [];
+  static final o = const <int>[];
 }
 ```