Link fixes.

Readme.md

@@ -16,9 +16,9 @@
     * [City oriented data Tools](/CityDataTool.md)
 
 ### Technologies:
-  * CKAN:
+  * [CKAN](https://ckan.org/):
      * [Solr-Tomcat successful install from sources on Ubuntu](/CkanUbuntuTomcatInstall.md)
      * [Solr-Jetty fails to install on Ubuntu](/CkanUbuntuJettyInstallFailure.md)
-  * [[https://tech.knime.org/installation-0|Knime]]
+  * [Knime](https://tech.knime.org/installation-0)
     * Open source (GPL), German made
-    * [[https://tech.knime.org/community/developers|Installation out of sources]]
+    * [Installation out of sources](https://tech.knime.org/community/developers)