Merge branch 'master' of https://github.com/stan-dev/stan-dev.github.io

Author: charlesm93

support/index.md

@@ -20,10 +20,10 @@ Stan can now accept tax-deductible contributions through this
 foundation. If you’re interested in contributing to Stan's ongoing
 development, you may contact us directly or just follow the link: 
 
+
 * <p>
-  <a href="https://numfocus.salsalabs.org/donate-to-stan/index.html">Contribute
+  <a href="https://numfocus.org/donate-to-stan">Contribute
   to Stan</a> &nbsp;
-  <span class="note">(Salsa Labs payment processing)</span>
   </p>
 
 It is also possible to donate to Stan via the GitHub sponsors program: 

users/interfaces/index.md

@@ -39,25 +39,26 @@ through interfaces into many popular computing environments.
 * [CmdStanPy](https://mc-stan.org/cmdstanpy)
   <span class="note">(Python, lightweight wrapper for CmdStan)</span>
 
+* [MathematicaStan](mathematica-stan.html)
+  <span class="note">(Mathematica)</span>
+
+* [RStan](rstan.html) <span class="note">(R)</span>
+
 * [Stan.jl](julia-stan.html)
   <span class="note">(Julia)</span>
 
-* [PyStan](pystan.html)
-  <span class="note">(Python)</span>
-
-* [RStan](rstan.html) <span class="note">(R)</span>
 
 ## Unsupported interfaces
 
 * [MatlabStan](matlab-stan.html)
   <span class="note">(MATLAB)</span>
 
+* [PyStan](pystan.html)
+  <span class="note">(Python)</span>
+
 * [StataStan](stata-stan.html)
   <span class="note">(Stata)</span>
 
-* [MathematicaStan](mathematica-stan.html)
-  <span class="note">(Mathematica)</span>
-
 * [ScalaStan](https://github.com/cibotech/ScalaStan)
   <span class="note">(Scala)</span>