settings.json

{
    "latex-workshop.latex.recipes" : [
        {
        " name": "latexmk 🔃",
          "tools": [
            "latexmk"
          ]
        },
        {
          "name": "pdflatex ➞ bibtex ➞ makeindex ➞ pdflatex ➞ pdflatex",
          "tools": [
            "pdflatex",
            "bibtex",
            "makeindex",
            "pdflatex",
            "pdflatex"
          ]
        },
        {
          "name": "pdflatex ➞ bibtex ➞ pdflatex`×2",
          "tools": [
            "pdflatex",
            "bibtex",
            "pdflatex",
            "pdflatex"
          ]
        }
      ],

      "latex-workshop.latex.tools" : [
        {
          "name": "latexmk",
          "command": "latexmk",
          "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "-pdf",
            "-outdir=%OUTDIR%",
            "%DOC%"
          ],
          "env": {}
        },
        {
          "name": "pdflatex",
          "command": "pdflatex",
          "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "%DOC%"
          ],
          "env": {}
        },
        {
          "name": "bibtex",
          "command": "bibtex",
          "args": [
            "%DOCFILE%"
          ],
          "env": {}
        },
        {
            "name": "makeindex",
            "command": "makeindex",
            "args": [
                  "%DOC%.nlo",
                  "-s",
                  "nomencl.ist",
                  "-o",
                  "%DOC%.nls"
            ]
        }
      ]
}