diff --git a/README.md b/README.md
index 8ad4d658..be58538d 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,9 @@ Interested? Try Greenlight out on our [demo server](https://demo.bigbluebutton.o
 
 Greenlight is also completely configurable. This means you can turn on/off features to make Greenlight fit your specific use case. For more information on Greenlight and its features, see our [documentation](http://docs.bigbluebutton.org/install/greenlight.html).
 
-For a overview of how Greenlight works, checkout our [Introduction to Greenlight Video](https://youtu.be/yGX3JCv7OVM).
+For a overview of how Greenlight works, checkout our Introduction to Greenlight Video:
+
+[![GreenLight Overview](https://img.youtube.com/vi/Hso8yLzkqj8/0.jpg)](https://youtu.be/Hso8yLzkqj8)
 
 ## Installation on a BigBlueButton Server
 
diff --git a/app/models/user.rb b/app/models/user.rb
index a89becb2..f5c086cd 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -23,8 +23,8 @@ class User < ApplicationRecord
     # Generates a user from omniauth.
     def from_omniauth(auth)
       find_or_initialize_by(social_uid: auth['uid'], provider: auth['provider']).tap do |u|
-        u.name = send("#{auth['provider']}_name", auth)
-        u.username = send("#{auth['provider']}_username", auth)
+        u.name = send("#{auth['provider']}_name", auth) unless u.name
+        u.username = send("#{auth['provider']}_username", auth) unless u.username
         u.email = send("#{auth['provider']}_email", auth)
         u.image = send("#{auth['provider']}_image", auth)
         u.save!
diff --git a/app/views/shared/_header.html.erb b/app/views/shared/_header.html.erb
index 61cef386..78e5217c 100644
--- a/app/views/shared/_header.html.erb
+++ b/app/views/shared/_header.html.erb
@@ -10,7 +10,7 @@
 					<%= image_tag("logo_with_text.png", class: "header-brand-img") %>
 				<% end %>
 			<% end %>
-			
+
 			<div class="d-flex ml-auto">
 				<% if current_user %>
 					<a class="px-5 ml-2 mt-1" href="" data-toggle="modal" data-target="#createRoomModal">
@@ -29,13 +29,13 @@
 						</a>
 						<div class="dropdown-menu dropdown-menu-right dropdown-menu-arrow" x-placement="bottom-end">
 							<%= link_to current_user.main_room, class: "dropdown-item" do %>
-								<i class="dropdown-icon fas fa-home"></i> Home Room	
+								<i class="dropdown-icon fas fa-home"></i> Home Room
 							<% end %>
 							<%= link_to edit_user_path(current_user), class: "dropdown-item" do %>
 								<i class="dropdown-icon fas fa-cog"></i> Settings
 							<% end %>
 							<div class="dropdown-divider"></div>
-							<a class="dropdown-item" href="http://docs.bigbluebutton.org/support/faq.html">
+							<a class="dropdown-item" href="http://docs.bigbluebutton.org/install/greenlight.html" target="_blank">
 								<i class="dropdown-icon far fa-question-circle"></i> Need help?
 							</a>
 							<%= link_to logout_path, class: "dropdown-item" do %>
@@ -49,7 +49,7 @@
 					<% if allow_user_signup? %>
 						<%= link_to "Signup", signup_path, :class => "btn btn-pill btn-outline-primary mx-2" %>
 					<% end %>
-					
+
 					<%= render "shared/modals/login_modal" %>
 				<% end %>
 			</div>
diff --git a/app/views/shared/modals/_create_room_modal.html.erb b/app/views/shared/modals/_create_room_modal.html.erb
index 43bd825a..bcf9e7c5 100644
--- a/app/views/shared/modals/_create_room_modal.html.erb
+++ b/app/views/shared/modals/_create_room_modal.html.erb
@@ -16,7 +16,7 @@
               <div class="invalid-feedback text-left">Room name cannot be blank.</div>
             </div>
             <label class="custom-switch mt-5 mb-5 float-left">
-              <%= f.check_box :auto_join, class: "custom-switch-input", checked: true %>
+              <%= f.check_box :auto_join, class: "custom-switch-input", checked: false %>
               <span class="custom-switch-indicator"></span>
               <span class="custom-switch-description">Automatically join me into the room.</span>
             </label>
diff --git a/app/views/shared/settings/_account.html.erb b/app/views/shared/settings/_account.html.erb
index 26504eb8..cc9669a5 100644
--- a/app/views/shared/settings/_account.html.erb
+++ b/app/views/shared/settings/_account.html.erb
@@ -18,7 +18,7 @@
     </div>
     <br>
     <%= f.label "Provider", class: "form-label" %>
-    <%= f.text_field :provider, class: "form-control", value: @user.provider.capitalize, readonly: "" %>
+    <%= f.text_field :provider, class: "form-control", readonly: "" %>
 
     <%= f.label "Image", class: "form-label mt-5" %>
     <div class="row">
diff --git a/app/views/users/new.html.erb b/app/views/users/new.html.erb
index 56620103..06b3168d 100644
--- a/app/views/users/new.html.erb
+++ b/app/views/users/new.html.erb
@@ -28,7 +28,8 @@
               <div class="invalid-feedback d-block"><%= @user.errors.full_messages_for(:password_confirmation).first %></div>
             </div>
             <div class="card-footer">
-              <%= f.submit "Sign up", class: "btn btn-primary float-right" %>
+              <%= f.submit "Sign up", class: "btn btn-primary float-right ml-2" %>
+              <%= link_to "Cancel", root_path, class: "btn btn-danger float-right ml-2" %>
             </div>
           <% end %>
         </div>