index.html: properly sort notcurses_reel.3

doc/man/index.html

@@ -60,13 +60,13 @@
    <a href="notcurses_menu.3.html">notcurses_menu</a>—menus on the top or bottom rows<br/>
    <a href="notcurses_metric.3.html">notcurses_metric</a>—fixed-width formatting with metric suffixes<br/>
    <a href="notcurses_multiselector.3.html">notcurses_multiselector</a>—high-level widget for selecting items from a set<br/>
-   <a href="notcurses_reel.3.html">notcurses_reel</a>—high-level widget for hierarchical data<br/>
    <a href="notcurses_output.3.html">notcurses_output</a>—drawing text on <tt>ncplane</tt>s<br/>
    <a href="notcurses_palette.3.html">notcurses_palette</a>—operations on notcurses palettes<br/>
    <a href="notcurses_plane.3.html">notcurses_plane</a>—operations on <tt>ncplane</tt> objects<br/>
    <a href="notcurses_plot.3.html">notcurses_plot</a>—drawing histograms and lineplots<br/>
    <a href="notcurses_progbar.3.html">notcurses_progbar</a>—drawing progress bars<br/>
    <a href="notcurses_reader.3.html">notcurses_reader</a>—high-level widget for collecting input<br/>
+   <a href="notcurses_reel.3.html">notcurses_reel</a>—high-level widget for hierarchical data<br/>
    <a href="notcurses_refresh.3.html">notcurses_refresh</a>—refresh an externally-damaged display<br/>
    <a href="notcurses_render.3.html">notcurses_render</a>—sync the physical display<br/>
    <a href="notcurses_selector.3.html">notcurses_selector</a>—high-level widget for selecting one item from a set<br/>