refreshed the useful links

contributing-to-pages.md

@@ -23,6 +23,6 @@ If you want to view your changes as you edit them, with Ruby installed you can i
     bundle install
     bundle exec jekyll serve
 
-and then goto [localhost:4000/seek/](http://localhost:4000/seek/). For more information please see [Using Jekyll with Pages](https://help.github.com/articles/using-jekyll-with-pages/)
+and then goto [localhost:4000](http://localhost:4000). For more information please see [Using Jekyll with Pages](https://help.github.com/articles/using-jekyll-with-pages/)
 
 You can make a change by forking and issuing a pull request. If contributing through GitHub is unfamiliar to you, please read [Contributing to Open Source on GitHub](https://guides.github.com/activities/contributing-to-open-source/)

tech/useful-links.md

@@ -7,18 +7,16 @@ FAIRDOM Website: [https://fair-dom.org](https://fair-dom.org)
 
 SEEK Github page: [https://github.com/seek4science/seek](https://github.com/seek4science/seek)
 
-SEEK JIRA - Issue tracking: [https://fair-dom.org/issues](https://fair-dom.org/issues)
-
-​Continuous Integration testing (Travis): [https://travis-ci.org/seek4science/seek](https://travis-ci.org/seek4science/seek)
+SEEK Issue tracking: [https://fair-dom.org/issues](https://fair-dom.org/issues)
 
 SEEK software website: [https://seek4science.org](https://seek4science.org)
 
 SEEK installation guide: [/tech/install.html](/tech/install.html)
 
 SEEK changelog: [/tech/releases/](/tech/releases)
 
-JERM ontology: [https://github.com/SysMO-DB/JERMOntology](https://github.com/SysMO-DB/JERMOntology)
+JERM ontology: [https://jermontology.org](https://jermontology.org)
 
-SEEK demo site: [https://demo.sysmo-db.org](https://demo.sysmo-db.org)
+SEEK demo site: [https://demo.seek4science.org](https://demo.seek4science.org)
 
 SEEK test site: [https://testing.sysmo-db.org](https://testing.sysmo-db.org)