fix(demo): add working image service url. escape quotes.

Author: jafin

example/src/App.tsx

@@ -511,7 +511,7 @@ export default class App extends Component<any, any> {
                   <br />
                   The tooltip will hide.
                   <br />
-                  Make sure you set data-iscapture="true"
+                  Make sure you set data-iscapture=&quot;true&quot;
                 </div>
                 <ReactTooltip
                   id="scrollContent"
@@ -802,8 +802,8 @@ export default class App extends Component<any, any> {
                 >
                   <div>header</div>
                   <img
-                    src="http://lorempixel.com/100/1500"
-                    alt="lorem 100x1500"
+                    src="http://picsum.photos/200/1500"
+                    alt="picsum.photos 200x1500"
                   />
                   <div>footer</div>
                 </ReactTooltip>
@@ -813,8 +813,8 @@ export default class App extends Component<any, any> {
                 <ReactTooltip id="noOverridePosition">
                   <div>header</div>
                   <img
-                    src="http://lorempixel.com/100/1500"
-                    alt="lorem 100x1500"
+                    src="http://picsum.photos/200/1500"
+                    alt="picsum.photos 200x1500"
                   />
                   <div>footer</div>
                 </ReactTooltip>
@@ -838,13 +838,13 @@ export default class App extends Component<any, any> {
                     '  return { top, left }\n' +
                     '} }>\n' +
                     '  <div>header</div>\n' +
-                    '  <img src="http://lorempixel.com/100/1500" alt="lorem image 100x1500" />\n' +
+                    '  <img src="http://placekitten.com/100/1500" alt="lorem image 100x1500" />\n' +
                     '  <div>footer</div>\n' +
                     '</ReactTooltip>\n' +
                     "<a data-tip data-for='noOverridePosition'>( •̀д•́) noOverride</a>\n" +
                     "<ReactTooltip id='noOverridePosition'>\n" +
                     '  <div>header</div>\n' +
-                    '  <img src="http://lorempixel.com/100/1500" alt="lorem image 100x1500" />\n' +
+                    '  <img src="http://placekitten.com/100/1500" alt="lorem image 100x1500" />\n' +
                     '  <div>footer</div>\n' +
                     '</ReactTooltip>'}
                 </p>