Add bio.tools for msstatstmt (#751)

* Add bio.tools for msstatstmt

* Fix link

---------

Co-authored-by: Björn Grüning <bjoern.gruening@gmail.com>

tools/msstats/msstats.xml

@@ -23,6 +23,9 @@
         </xml>
 
     </macros>
+    <xrefs>
+        <xref type="bio.tools">msstatstmt</xref>
+    </xrefs>
     <requirements>
         <requirement type="package" version="@TOOL_VERSION@">bioconductor-msstats</requirement>
     </requirements>
@@ -1020,7 +1023,7 @@ The MSstats Galaxy tool (version @TOOL_VERSION@) allows the detection of differe
 
 **Input data**
 
-- Data in tabular or csv format, either in the 10-column MSstats format or the outputs of spectral processing tools such as `MaxQuant <http://coxdocs.org/doku.php?id=maxquant:start/>`_, `OpenSWATH <http://openswath.org/en/latest/>`_
+- Data in tabular or csv format, either in the 10-column MSstats format or the outputs of spectral processing tools such as `MaxQuant <https://cox-labs.github.io/coxdocs/maxquant_instructions.html>`_, `OpenSWATH <http://openswath.org/en/latest/>`_
 
     - MSstats format: tabular file with 10 column either manually curated or other sources such as Swath2stats tool which is implemented in Pyprophet export in Galaxy. For manual curation: Names of headers are fixed but not case sensitive: