chore: phone number casing

Author: sean-perkins

static/usage/v7/input/mask/javascript/index_html.md

@@ -12,7 +12,7 @@
           <ion-input id="card" label="Card number" placeholder="0000 0000 0000 0000"></ion-input>
         </ion-item>
         <ion-item>
-          <ion-input id="phone" label="US Phone number" placeholder="+1 (xxx) xxx-xxxx"></ion-input>
+          <ion-input id="phone" label="US phone number" placeholder="+1 (xxx) xxx-xxxx"></ion-input>
         </ion-item>
       </ion-list>
 

static/usage/v7/input/mask/react.md

@@ -30,7 +30,7 @@ function Example() {
         <IonInput ref={cardRef} label="Card number" placeholder="0000 0000 0000 0000"></IonInput>
       </IonItem>
       <IonItem>
-        <IonInput ref={phoneRef} label="US Phone number" placeholder="+1 (xxx) xxx-xxxx"></IonInput>
+        <IonInput ref={phoneRef} label="US phone number" placeholder="+1 (xxx) xxx-xxxx"></IonInput>
       </IonItem>
     </IonList>
   );

static/usage/v7/input/mask/vue.md

@@ -5,7 +5,7 @@
       <ion-input label="Card number" placeholder="0000 0000 0000 0000" v-maskito="cardOptions"></ion-input>
     </ion-item>
     <ion-item>
-      <ion-input label="US Phone number" placeholder="+1 (xxx) xxx-xxxx" v-maskito="phoneOptions"></ion-input>
+      <ion-input label="US phone number" placeholder="+1 (xxx) xxx-xxxx" v-maskito="phoneOptions"></ion-input>
     </ion-item>
   </ion-list>
 </template>