PLT-3886 Add missing period in tutorial intro screen (#3811)

* Add missing period in tutorial intro screen

* Update en.json

webapp/components/tutorial/tutorial_intro_screens.jsx

@@ -81,7 +81,7 @@ export default class TutorialIntroScreens extends React.Component {
                     id='tutorial_intro.screenOne'
                     defaultMessage='<h3>Welcome to:</h3>
                     <h1>Mattermost</h1>
-                    <p>Your team communication all in one place, instantly searchable and available anywhere</p>
+                    <p>Your team communication all in one place, instantly searchable and available anywhere.</p>
                     <p>Keep your team connected to help them achieve what matters most.</p>'
                 />
                 {circles}

webapp/i18n/en.json

@@ -1603,7 +1603,7 @@
   "tutorial_intro.mobileApps": "Install the apps for {link} for easy access and notifications on the go.",
   "tutorial_intro.mobileAppsLinkText": "PC, Mac, iOS and Android",
   "tutorial_intro.next": "Next",
-  "tutorial_intro.screenOne": "<h3>Welcome to:</h3><h1>Mattermost</h1><p>Your team communication all in one place, instantly searchable and available anywhere</p><p>Keep your team connected to help them achieve what matters most.</p>",
+  "tutorial_intro.screenOne": "<h3>Welcome to:</h3><h1>Mattermost</h1><p>Your team communication all in one place, instantly searchable and available anywhere.</p><p>Keep your team connected to help them achieve what matters most.</p>",
   "tutorial_intro.screenTwo": "<h3>How Mattermost works:</h3><p>Communication happens in public discussion channels, private groups and direct messages.</p><p>Everything is archived and searchable from any web-enabled desktop, laptop or phone.</p>",
   "tutorial_intro.skip": "Skip tutorial",
   "tutorial_intro.support": "Need anything, just email us at ",