Adds styling for the buttons triggering the modals

Author: Taushanova-Atanasova, Inna

src/Alert/Alert.Component.js

@@ -17,7 +17,7 @@ export const AlertComponent = () => {
     تم. بسبب أمام وشعار ولم بـ. أحكم والكساد ما فقد. كل وعُرفت الإنزال مدن. انه
 </Alert>`;
 
-    const errorAlertCode = ` <Alert type="error" dismissable link="#" linkText="link">
+    const errorAlertCode = `<Alert type="error" dismissable link="#" linkText="link">
     Error message with a
 </Alert>
 

src/Modal/Modal.Component.js

@@ -189,8 +189,8 @@ export class ModalComponent extends Component {
           This is used to present information to the user but the Alert
           Component doesn’t fit all the information.
         </Description>
-        <DocsTile>
-          <button onClick={this.showHideModal}>Show Information Modal</button>
+        <DocsTile centered>
+          <button class="fd-button" onClick={this.showHideModal}>Show Information Modal</button>
           <Modal
             show={this.state.bShowInfoModal}
             title="Product Added"
@@ -255,8 +255,8 @@ export class ModalComponent extends Component {
           This is used for short forms in order to collect information from the
           user.
         </Description>
-        <DocsTile>
-          <button onClick={this.showHideFormModal}>Show Form Modal</button>
+        <DocsTile centered>
+          <button class="fd-button" onClick={this.showHideFormModal}>Show Form Modal</button>
           <Modal
             show={this.state.bShowFormModal}
             title="Invite user"