Update the rendered documentation to 1.0 beta2

Update the PDF and HTML documentation to PSA Crypto API 1.0 beta2.

Documentation generated from psa-crypto at psa-crypto-api-1.0-beta2
with "make export".
diff --git a/docs/html/index.html b/docs/html/index.html
index f096d3c..3fb1ac1 100644
--- a/docs/html/index.html
+++ b/docs/html/index.html
@@ -24,7 +24,7 @@
  <tr style="height: 56px;">
   <td id="projectalign" style="padding-left: 0.5em;">
    <div id="projectname">Platform Security Architecture — cryptography and keystore interface
-   &#160;<span id="projectnumber">beta 1 — 2019-01-21</span>
+   &#160;<span id="projectnumber">beta 2 — 2019-02-22</span>
    </div>
   </td>
  </tr>