added icon for editing form

spa/edit.html

             </div>
             <div class="row"> 
                 <div class="input-field col s12"> 
+                    <i class="material-icons prefix">account_circle</i>
                     <input id="lastname" type="text" class="validate" value="{{.LastName}}"> 
                     <label for="first_name">姓名（中文名）</label>                     
                 </div>                 
             </div>             
             <div class="row">
                 <div class="input-field col s12"> 
+                    <i class="material-icons prefix">email</i>
                     <input id="email" type="text" class="validate" value="{{.EmailAddress}}"> 
                     <label for="last_name">电子邮件</label>                     
                 </div>                 
             </div>
             <div class="row">
                 <div class="input-field col s12"> 
+                    <i class="material-icons prefix">phone</i>
                     <input id="phone" type="text" class="validate" value="{{.PhoneNumber}}"> 
                     <label for="last_name">联络电话</label>                     
                 </div>                 
             </div>             
             <div class="row"> 
                 <div class="input-field col s12"> 
+                    <i class="material-icons prefix">comment</i>
                     <textarea id="textarea1" class="materialize-textarea">{{.Description}}</textarea>                     
                     <label for="textarea1">个人简介 300字以内</label>                     
                 </div>                 

spa/pinegrow.json

-{"files":{"edit.html":{"frameworks":["spa","pg.insight.events","pg.code-validator","pg.asset.manager","pg.project.items","mat0.97.5","pg.html","pg.components"],"last_page_width":1024}},"breakpoints":["28.875em","33.875em","35.875em","38.875em","40.125em","46.75em","360px","390px","420px","450px","480px","510px","540px","570px","601px","630px","660px","690px","720px","750px","780px","810px","840px","870px","900px","930px","960px","993px","1200px"],"frameworks":["spa","pg.insight.events","pg.code-validator","pg.asset.manager","pg.project.items","mat0.97.5","pg.html","pg.components"],"template_framework_id":"materialize","custom_width":1024}
+{"files":{"edit.html":{"frameworks":["spa","pg.insight.events","pg.code-validator","pg.asset.manager","pg.project.items","mat0.97.5","pg.html","pg.components"],"last_page_width":896}},"breakpoints":["28.875em","33.875em","35.875em","38.875em","40.125em","46.75em","360px","390px","420px","450px","480px","510px","540px","570px","601px","630px","660px","690px","720px","750px","780px","810px","840px","870px","900px","930px","960px","993px","1200px"],"frameworks":["spa","pg.insight.events","pg.code-validator","pg.asset.manager","pg.project.items","mat0.97.5","pg.html","pg.components"],"template_framework_id":"materialize","custom_width":896}