update README, doc links

README.md

@@ -1,4 +1,3 @@
-
 [![DOI](https://zenodo.org/badge/205441660.svg)](https://zenodo.org/badge/latestdoi/205441660)
 
 
@@ -13,12 +12,20 @@ computer programming languages and environments.
 
 The data and code here are placed in the Public Domain.
 
-## Web interface 
+## Web interface
+
+Web interfaces using XrayDB to display X-ray properties of the elements can be
+found at
+
+-  https://seescience.org/xraydb/
+-  https://xraydb.xrayabsorption.org/
+
+The code for this web interface is at https://github.com/xraypy/xrayweb
 
-A web interface using XrayDB to display X-ray properties of the elements can be found at 
-https://millenia.cars.aps.anl.gov/xraydb/ and https://xraydb.xrayabsorption.org/
+## Periodic Tables
 
-The code for this web interface is at https://github.com/xraypy/xrayweb 
+Poster-sized Periodic Tables of X-ray energies built with XrayDB can be
+downloaded from https://xraypy.github.io/XrayDB/periodictable.html
 
 ## About X-ray DB
 

doc/_templates/indexsidebar.html

@@ -25,8 +25,8 @@ <h3>XrayDB Web App</h3>
 <ul>
    <li>&nbsp; &nbsp;<a href="https://xraydb.xrayabsorption.org">
        xraydb@rayabsorption.org</a></li>
-   <li>&nbsp; &nbsp;<a href="https://millenia.cars.aps.anl.gov/xraydb">
-       xraydb@UChicago</a></li>
+   <li>&nbsp; &nbsp;<a href="https://seescience.org/xraydb">
+       xraydb@SEES</a></li>
  </ul>
 
 </p>