Fixes for latex font and latemk custom makeindex cmd

doc/latex/global/latexmk.pl

@@ -10,7 +10,7 @@ $out_dir            = '../build';
 ## Custom cmds
 set_tex_cmds('-shell-escape -file-line-error -interaction=nonstopmode');
 #set_tex_cmds('-shell-escape -file-line-error');
-$makeindex = 'makeindex %O -s %R.ist -o %D %S';
+$makeindex = "makeindex %O -s ../../global/index.ist -o $out_dir/%D $out_dir/%S";
 ## %D: Destination file (.ind for index)
 ## %O: Options
 ## %R: Root filename (${model}_manual)

doc/latex/global/packages.tex

@@ -14,7 +14,7 @@
 %% Fonts
 \usepackage{fontspec}
 %% Issue with path to 'FontAwesome.otf'
-\defaultfontfeatures{Path=/usr/local/texlive/2020/texmf-dist/fonts/opentype/public/fontawesome/}
+\defaultfontfeatures{Path=/usr/local/texlive/2021/texmf-dist/fonts/opentype/public/fontawesome/}
 \usepackage{academicons,fontawesome}
 
 %% Formatting