[pointer_interceptor] Fix README for pub.dev (#258)

Tweak the README.md slightly so it renders better in pub.dev (which seems to be completely removing the center tag).

diff --git a/packages/pointer_interceptor/CHANGELOG.md b/packages/pointer_interceptor/CHANGELOG.md
index a30a832..aba9bbf 100644
--- a/packages/pointer_interceptor/CHANGELOG.md
+++ b/packages/pointer_interceptor/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.8.0+1
+
+* Update README.md so images render in pub.dev
+
 ## 0.8.0
 
 * Initial release of the `PointerInterceptor` widget.
diff --git a/packages/pointer_interceptor/README.md b/packages/pointer_interceptor/README.md
index fd6a22c..07cc81a 100644
--- a/packages/pointer_interceptor/README.md
+++ b/packages/pointer_interceptor/README.md
@@ -10,12 +10,11 @@
 
 The result is that Flutter widget's `onTap` (and other) handlers won't fire as expected, but they'll affect the underlying webview.
 
-<center>
+|The problem...|
+|:-:|
+|![Depiction of problematic areas](https://raw.githubusercontent.com/flutter/packages/master/packages/pointer_interceptor/doc/img/affected-areas.png)|
+|_In the dashed areas, mouse events won't work as expected. The `HtmlElementView` will consume them before Flutter sees them._|
 
-![In the dashed areas, clicks won't work](doc/img/affected-areas.png)
-
-_In the dashed areas, clicks won't work as expected._
-</center>
 
 ## How does this work?
 
@@ -25,13 +24,10 @@
 
 This gives an opportunity to the Flutter framework to handle the click, as expected:
 
-<center>
-
-![The PointerInterceptor renders between the flutter element, and the platform view](doc/img/fixed-areas.png)
-
-_Each `PointerInterceptor` (green) renders between Flutter widgets and the underlying `HtmlElementView`. Clicks work as expected._
-</center>
-
+|The solution...|
+|:-:|
+|![Depiction of the solution](https://raw.githubusercontent.com/flutter/packages/master/packages/pointer_interceptor/doc/img/fixed-areas.png)|
+|_Each `PointerInterceptor` (green) renders between Flutter widgets and the underlying `HtmlElementView`. Mouse events now can't reach the background HtmlElementView, and work as expected._|
 
 ## How to use
 
diff --git a/packages/pointer_interceptor/pubspec.yaml b/packages/pointer_interceptor/pubspec.yaml
index 0493a05..5e6cd2a 100644
--- a/packages/pointer_interceptor/pubspec.yaml
+++ b/packages/pointer_interceptor/pubspec.yaml
@@ -1,6 +1,6 @@
 name: pointer_interceptor
 description: A widget to prevent clicks from being swallowed by underlying HtmlElementViews on the web.
-version: 0.8.0
+version: 0.8.0+1
 repository: https://github.com/flutter/packages
 
 environment: