Revert "change order publications in readthedocs"

This reverts commit 9a3d1448.

docs/source/index.rst

@@ -15,20 +15,20 @@ PanTools has been licensed under `GNU GENERAL PUBLIC LICENSE version 3.
 Publications
 ------------
 
-- [2022] `Pantools v3: functional annotation, classification, and phylogenomics
-   <https://doi.org/10.1093/bioinformatics/btac506>`_
-- [2021] `The Pectobacterium pangenome, with a focus on Pectobacterium
+-  `PanTools: representation, storage and exploration of pan-genomic
+   data.
+   <https://academic.oup.com/bioinformatics/article/32/17/i487/2450785>`_
+-  `Efficient inference of homologs in large eukaryotic pan-proteomes
+   <https://bmcbioinformatics.biomedcentral.com/articles/10.1186/
+   s12859-018-2362-4>`_
+-  `Pan-genomic read mapping
+   <https://www.biorxiv.org/content/10.1101/813634v1>`_
+-  `The Pectobacterium pangenome, with a focus on Pectobacterium
    brasiliense, shows a robust core and extensive exchange of genes
    from a shared gene pool
    <https://doi.org/10.1186/s12864-021-07583-5>`_
-- [2019] `Pan-genomic read mapping
-   <https://www.biorxiv.org/content/10.1101/813634v1>`_
-- [2018] `Efficient inference of homologs in large eukaryotic pan-proteomes
-   <https://bmcbioinformatics.biomedcentral.com/articles/10.1186/
-   s12859-018-2362-4>`_
-- [2016] `PanTools: representation, storage and exploration of pan-genomic
-   data.
-   <https://academic.oup.com/bioinformatics/article/32/17/i487/2450785>`_
+-  `Pantools v3: functional annotation, classification, and phylogenomics
+   <https://doi.org/10.1093/bioinformatics/btac506>`_
 
 Functionalities
 ---------------