diff --git a/docs/software_references_mqc.yaml b/docs/software_references_mqc.yaml
index 675745fdb642ee27b2aa223bf5dfae78c1bb3897..d9d18558b7df3f626ff89cdb01c610228db92a8b 100644
--- a/docs/software_references_mqc.yaml
+++ b/docs/software_references_mqc.yaml
@@ -4,7 +4,7 @@
         description: 'This section describes references for the tools used.'
         plot_type: 'html'
         data: |
-
+        
                 <h3 id="references">References</h3>
                 <ol style="list-style-type: decimal">
                 <li><strong>python</strong>:</li>
@@ -41,7 +41,7 @@
                 <li><strong>hisat2</strong>:</li>
                 </ol>
                 <ul>
-                <li>Kim ,D.,Paggi, J.M., Park, C., Bennett, C., Salzberg, S.L. Graph-based genome alignment and genotyping with HISAT2 and HISAT-genotype. 2019 Nat Biotechnol. 2019 Aug;37(8):907-915. doi:<a href="https://doi.org/10.1038/s41587-019-0201-4">10.1038/s41587-019-0201-4</a></li>
+                <li>Kim ,D.,Paggi, J.M., Park, C., Bennett, C., Salzberg, S.L. 2019 Graph-based genome alignment and genotyping with HISAT2 and HISAT-genotype. Nat Biotechnol. Aug;37(8):907-915. doi:<a href="https://doi.org/10.1038/s41587-019-0201-4">10.1038/s41587-019-0201-4</a>.</li>
                 </ul>
                 <ol start="7" style="list-style-type: decimal">
                 <li><strong>samtools</strong>:</li>
diff --git a/docs/software_versions_mqc.yaml b/docs/software_versions_mqc.yaml
index 7b44cf8c8b898ceb03770670a6acd4d7396a2550..8f2b97ce7e645b909c93a0ab573752ec24542dcc 100644
--- a/docs/software_versions_mqc.yaml
+++ b/docs/software_versions_mqc.yaml
@@ -6,7 +6,7 @@
         description: 'are collected for pipeline version.'
         data: |
             <dl class="dl-horizontal">
-
+        
             <dt>Python</dt><dd>v3.7.7</dd>
             <dt>DERIVA</dt><dd>v1.0.0</dd>
             <dt>BDBag</dt><dd>v1.5.6</dd>