Ensure there are spaces in homepage text (#765)

Signed-off-by: Chris Abraham <[email protected]>

Author: cjyabraham

website/content/_index.html

@@ -14,8 +14,9 @@
 						alt="A person working on a laptop at a CNCF conference">
 				</figure>
 				<div class="background-image-text-overlay">
-					<h2>Contributors <br class="show-over-768" />shape the cloud
-						<br class="show-over-768" />native landscape
+					<h2>Contributors 
+						<span> </span><br class="show-over-768" />shape the cloud
+						<span> </span><br class="show-over-768" />native landscape
 					</h2>
 				</div>
 			</div>
@@ -26,9 +27,9 @@ <h2>Contributors <br class="show-over-768" />shape the cloud
 						alt="People chatting at a CNCF event">
 				</figure>
 				<div class="background-image-text-overlay">
-					<h2>Grow flourishing, <br
-							class="show-over-768" />sustainable <br
-							class="show-over-768" />communities</h2>
+					<h2>Grow flourishing, 
+						<span> </span><br class="show-over-768" />sustainable 
+						<span> </span><br class="show-over-768" />communities</h2>
 				</div>
 			</div>
 			<div class="slide background-image-wrapper">
@@ -39,8 +40,8 @@ <h2>Grow flourishing, <br
 				</figure>
 				<div class="background-image-text-overlay">
 					<h2>And drive
-						<br class="show-over-768" />CNCF project
-						<br class="show-over-768" />lifecycles
+						<span> </span><br class="show-over-768" />CNCF project
+						<span> </span><br class="show-over-768" />lifecycles
 					</h2>
 				</div>
 			</div>