Revert "openjournals/joss-reviews#1104: using pandoc footnotes for jo…

…int first authorship notice"

This is due to jgm/pandoc#1603

This reverts commit 02487ed.

paper/paper.md

@@ -7,10 +7,10 @@ tags:
   - LabVIEW
   - Windows
 authors:
-  - name: Dzhoshkun Ismail Shakir[^*]
+  - name: Dzhoshkun Ismail Shakir<sup>*</sup>
     orcid: 0000-0003-3009-4178
     affiliation: "1, 2, 3"
-  - name: Sunish Mathews[^*]
+  - name: Sunish Mathews<sup>*</sup>
     orcid: 0000-0002-2289-3669
     affiliation: "3, 4"
   - name: Wenfeng Xia
@@ -35,7 +35,7 @@ date: 27 November 2018
 bibliography: paper.bib
 ---
 
-[^*]: These authors contributed equally to this paper.
+<sup>*</sup> These authors contributed equally to this paper.
 
 # Summary