Merge pull request #259 from phpbb/sphinx_stopwords_link

Add link to stopwords file for sphinx

Author: marc1706

documentation/content/en/chapters/server_guide.xml

@@ -166,11 +166,11 @@
                 <title>Stopwords</title>
                 <para>
                     Sphinx config file provides an option for specifying a file containing search stop words. Stop words are those common words like 'a' and 'the' that appear commonly in text
-                    and should really be ignored from searching. A somewhat complete list of English stop words can be found [# here]. These words can be copied into a text file and added
+                    and should really be ignored from searching. A somewhat complete list of English stop words can be found <ulink url="https://github.com/stopwords-iso/stopwords-en">here</ulink>. These words can be copied into a text file and added
                     to sphinx.conf under index_phpbb section as
                 </para>
                 <para><code>stopwords = path/to/stopwords.txt</code></para>
             </section>
         </section>
     </section>
-</chapter>
+</chapter>