Update Absolute Newest and Past Releases download info

Author: dhalbert

_includes/download/board.html

@@ -67,9 +67,9 @@ <h3>CircuitPython {{ version.version }}</h3>
 <div class="section unrecommended">
   <h3>Absolute Newest</h3>
   <p>
-    Every time we commit new code to CircuitPython we automatically build binaries for it. They
-    are stored on Amazon S3 by language (some which may be unreleased.) Try them if you want
-    the absolute latest and are feeling risky.
+    Every time we commit new code to CircuitPython we automatically build binaries for each board and language.
+    The binaries are stored on Amazon S3, organized by board, and then by language. Try them if you want
+    the absolute latest and are feeling daring or want to see if a problem has been fixed.
   </p>
   <div>
       <a class="download-button-unrecommended" href="https://adafruit-circuit-python.s3.amazonaws.com/index.html?prefix=bin/{{ page.board_id }}/">BROWSE S3<i class="fas fa-arrow-circle-right" aria-hidden="true"></i></a>
@@ -79,11 +79,17 @@ <h3>Absolute Newest</h3>
 <div class="section unrecommended">
   <h3>Past Releases</h3>
   <p>
-    All previous releases are available on GitHub. They are handy for testing but we recommend
-    the latest stable otherwise.
+    All previous releases are listed on GitHub, with release notes,
+    and are available for download from Amazon S3.
+    Some older GitHub release pages include the same binaries for downloading.
+    But we have discontinued including binaries as assets on newer release pages
+    because of the large number of files for each release.
   </p>
   <div>
       <a class="download-button-unrecommended" href="https://github.com/adafruit/circuitpython/releases">BROWSE GITHUB<i class="fab fa-github" aria-hidden="true"></i></a>
     <div class="clear"></div>
+  <div>
+      <a class="download-button-unrecommended" href="https://adafruit-circuit-python.s3.amazonaws.com/index.html?prefix=bin/{{ page.board_id }}/">BROWSE S3<i class="fas fa-arrow-circle-right" aria-hidden="true"></i></a>
+    <div class="clear"></div>
   </div>
 </div>