Fix spelling on readme and edit some css

--HG--
branch : kf-courseware

sass/_base.scss

@@ -28,6 +28,6 @@ p {
 }
 
 input[type="submit"], input[type="button"], button {
-  // @extend .button;
+  @extend .button;
 }
 

sass/_courseware.scss

@@ -11,8 +11,13 @@ div.course-wrapper {
     text-shadow: 0 1px 0 #f6f6f6;
     vertical-align: top;
     width: grid-width(3);
+    overflow: hidden;
 
     h3 {
+      &:last-child {
+        @include box-shadow(none);
+      }
+
       &.ui-accordion-header {
         color: #000;
 
@@ -22,11 +27,11 @@ div.course-wrapper {
         }
 
         &.ui-state-default {
+          @include box-shadow(0 1px 0 #eee);
           background: none;
-          font-weight: normal;
           border: none;
           border-bottom: 1px solid #d3d3d3;
-          @include box-shadow(0 1px 0 #eee);
+          font-weight: normal;
         }
 
         &.ui-state-hover {

sass/reademe.md

-This project is using Sass to generate it's CSS. Sass is a CSS preprocessor that allows for faster developmnet of CSS. For more information about sass: http://sass-lang.com
+This project is using Sass to generate it's CSS. Sass is a CSS preprocessor that allows for faster development of CSS. For more information about sass: http://sass-lang.com
 
 To use sass all you need to do is enter:
 $ gem install sass
 
-We are also using Bourbon with sass. They are a genaric set of mixins, and functions that allow for more rpid development of CSS3. Find out more about bourbon here: https://github.com/thoughtbot/bourbon
+We are also using Bourbon with sass. They are a generic set of mixins, and functions that allow for more rapid development of CSS3. Find out more about bourbon here: https://github.com/thoughtbot/bourbon
 
 Then to generate Sass files cd to templates directory and watch the sass files with: 
 $ sass --watch sass:../static/css/ -r ./sass/bourbon/lib/bourbon.rb
 
-This will automatically generate the CSS files on save. 
+This will automatically generate the CSS files on save.