Merge pull request jbaysolutions#335 from pmorch/doc-update-fix-spelling

Doc update fix spelling

Author: gmsa

README.md

@@ -149,7 +149,8 @@ Include the browser-ready bundle (download from [releases](https://github.com/jb
                    :y="item.y"
                    :w="item.w"
                    :h="item.h"
-                   :i="item.i">
+                   :i="item.i"
+                   :key="item.i">
             {{item.i}}
         </grid-item>
     </grid-layout>
@@ -465,6 +466,7 @@ Working example [here](https://jbaysolutions.github.io/vue-grid-layout/examples/
                    :w="item.w"
                    :h="item.h"
                    :i="item.i"
+                   :key="item.i"
                    @resize="resizeEvent"
                    @move="moveEvent"
                    @resized="resizedEvent"

src/components/GridItem.vue

@@ -773,7 +773,7 @@
                     pos.w = 1;
                 }
 
-                // this.lastW = x; // basicly, this is copied from resizehandler, but shouldn't be needed
+                // this.lastW = x; // basically, this is copied from resizehandler, but shouldn't be needed
                 // this.lastH = y;
 
                 if (this.innerW !== pos.w || this.innerH !== pos.h) {