Merge pull request #1072 from lhapaipai/fix/webpack-icon

[DOC] homepage fix webpack icon

index.html

@@ -392,7 +392,7 @@ <h1><img src="https://openlayers.org/theme/img/logo-dark.svg">&nbsp;ol-ext<span>
     <br/>
       More example for use in:
       <a href="https://github.com/darkscript/ol-ol-ext-webpack-example">
-        <img src="https://camo.githubusercontent.com/d18f4a7a64244f703efcb322bf298dcb4ca38856/68747470733a2f2f7765627061636b2e6a732e6f72672f6173736574732f69636f6e2d7371756172652d6269672e737667" style="height:2em; vertical-align:middle;" />webpack
+        <img src="https://raw.githubusercontent.com/webpack/media/master/logo/icon-square-small.svg" style="height:2em; vertical-align:middle;" />webpack
       </a>
       <a href="https://github.com/Viglino/ol-ext-parcel-bundler">
         <img src="https://parceljs.org/parcel.fb905a63.png" style="height:2em; vertical-align:middle;" />parcel