Add Peerspace link.

src/promotions.html

@@ -26,8 +26,12 @@ <h1>Austin Inland Beach Promotions!</h1>
                 Hosts</a>
         </p>
 
+        <h2>Try booking with Peerspace, get $50</h2>
+        <p class="body-text">We're experimenting with Peerspace as a booking provider instead of Swimply. If you want to try Peerspace, use <a href="https://www.peerspace.com/claim/gr-veN3LQ24vZl4">this link</a> to book and you will get a $50 discount!</a></p>
+        <p>This offer is only valid for new Peerspace users and bookings over $150.</p>
+
         <h2>Back to Skool 2023</h2>
-        <p class="body-text">Use code H-BACKTOSKOOL for 20% off your booking to celebrate classrooms, books, and
+        <p class="body-text">Use code H-BACKTOSKOOL for 20% off your Swimply booking to celebrate classrooms, books, and
             teacher's dirty looks. Valid through 2 September 2023.</p>
 
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