Some typos

Author: Marc J. Schmidt

README.md

@@ -40,7 +40,7 @@ Example
     content: url(demo/image-1000px.jpg);
 }
 
-.responsive-image[min-width$='1000px'] img {
+.responsive-image[min-width='1000px'] img {
     content: url(demo/image-full.jpg);
 }
 ```

demo.html

@@ -42,7 +42,7 @@
             content: url(demo/image-1000px.jpg);
         }
 
-        .responsive-image[min-width$='1000px'] img {
+        .responsive-image[min-width='1000px'] img {
             content: url(demo/image-full.jpg);
         }
     </style>

src/ElementQueries.js

@@ -17,7 +17,7 @@
                 element.addEventListener('overflowchanged', function (e) {
                     callback.call(this, e);
                 });
-            } else {
+            } else {
                 element.addEventListener('overflow', function (e) {
                     callback.call(this, e);
                 });
@@ -305,7 +305,7 @@
          */
         this.init = function(){
             for (var i = 0, j = document.styleSheets.length; i < j; i++) {
-                readRules(document.styleSheets[i].cssRules || document.styleSheets[i].rules);
+                readRules(document.styleSheets[i].cssRules || document.styleSheets[i].rules);
             }
         }
     }