Make URLs use latest API version (#67)

Closes #66

Signed-off-by: sami-m-g <sami.mg@outlook.com>
Reviewed-by: João Gonçalves <jsvgoncalves@gmail.com>

Author: sami-m-g

templates/home.html

@@ -27,7 +27,7 @@ <h2>Search for a term</h2>
         </form>
         {% for concept in concepts %}
         <h3>
-            <a href="/concept?concept_iri={{ concept.iri }}">prefLabel: {{ concept.prefLabel }}</a>
+            <a href="/latest/concept?concept_iri={{ concept.iri }}">prefLabel: {{ concept.prefLabel }}</a>
         </h3>
         <p>iri: {{ concept.iri }}</p>
         <p>notation: {{ concept.notation }}</p>