fix a few issues on SEN pages (#58)

Author: yqtianust

content/SEN/SEN.md

@@ -29,7 +29,7 @@ Ajay Jain, Adobe Systems Inc.
 
 ### Associate Editors
 
-- Uwe Breitenbücher, University of Stuttgart, Germany
+- Uwe Breitenbücher, University of Reutlingen, Germany
 - Stefano Forti, University of Pisa, Italy
 - Will Tracz, United States
 

content/SEN/instructions.md

@@ -6,7 +6,7 @@ title = "Instructions for Conference and Workshop Organizers"
 
 **Software Engineering Notes (SEN)** provides ACM SIGSOFT-affiliated conferences, workshops or symposiums an opportunity to publish proceedings and/or meeting summaries.
 
-To have a meeting, panel, session, keynote or other summary published, organizers should prepare, using the [standard SEN format guidelines](http://www.stidolph.com/SEN/index.html), an MS Word or LaTex document consisting of:
+To have a meeting, panel, session, keynote or other summary published, organizers should prepare, using the [standard SEN format guidelines]({{< ref "guideline.md" >}} "guideline"), an MS Word or LaTex document consisting of:
 
 1.  the title and authors (with affiliations and email addresses),
 2.  an abstract of the summary, and
@@ -20,7 +20,7 @@ To publish a full proceedings, organizers must provide the editor with:
 2.  the abstracts consisting of titles, authors (with affiliations and email addresses), abstracts, and keywords, and
 3.  the workshop papers (in ACM proceedings paper format).
 
-The table of contents and the abstracts will be printed in the hardcopy version of SEN and the full set of information will appear in the softcopy version in the Digital Library (see [previous issues of SEN](http://portal.acm.org/browse_dl.cfm?linked=1&part=newsletter&idx=J728&coll=portal&dl=ACM) for examples).
+The table of contents and the abstracts will be printed in the hardcopy version of SEN and the full set of information will appear in the softcopy version in the Digital Library (see [previous issues of SEN](http://dl.acm.org/citation.cfm?id=J728) for examples).
 
 **Note:** For production reasons, full papers should be submitted in both source and PDF format. If only PDF is supplied, then the file should be rendered with all fonts embedded.