Adding title for double assets ribbon.

src/components/farm/Board.jsx

@@ -181,7 +181,9 @@ class ResourceUnit extends React.Component {
                 {this.props.img ? (<img src={this.props.img} />) : (<Fragment />)}
                 {this.props.children}
                 {this.props.doubled ? (
-                     <div className="resource-doubled">
+                     <div className="resource-doubled"
+                          title={this.props.doubled + ' harvests are doubled this year!'}
+                         >
                          <FontAwesomeIcon icon={faAward} />
                      </div>
                 ) : (<></>)}
@@ -252,13 +254,13 @@ class PlayerResources extends React.Component {
             <div className='resource-unit-container'>
                 <ResourceUnit img={HayImg} h='120' s='100' label='acres of Hay'
                               amount={player.assets.hay}
-                              doubled={player.hayDoubled}
+                              doubled={player.hayDoubled && 'Hay'}
                 >
                     {player.assets.hay}
                 </ResourceUnit> {' '}
                 <ResourceUnit img={WheatImg} h='41' s='100' label='acres of Grain'
                               amount={player.assets.grain}
-                              doubled={player.cornDoubled}
+                              doubled={player.cornDoubled && 'Corn'}
                 >
                     {player.assets.grain}
                 </ResourceUnit> {' '}