docs(table): add missing table JsDoc (#5525)

src/material-examples/table-basic/table-basic-example.css

@@ -3,7 +3,6 @@
   display: flex;
   flex-direction: column;
   max-height: 500px;
-  background: white;
   min-width: 300px;
 }
 

src/material-examples/table-basic/table-basic-example.html

@@ -1,6 +1,4 @@
 <div class="example-container mat-elevation-z8">
-  <div class="example-header"> Users </div>
-
   <md-table #table [dataSource]="dataSource">
 
     <!--- Note that these columns can be defined in any order.
@@ -33,4 +31,4 @@
     <md-header-row *cdkHeaderRowDef="displayedColumns"></md-header-row>
     <md-row *cdkRowDef="let row; columns: displayedColumns;"></md-row>
   </md-table>
-</div>
+</div>