Resolve "Performance of search commands"

Closes #38 (closed)

doc/footer

-.SH "AUTHOR AND AVAILABILITY"
-Lektor is a karaoke player for POSIX compliant systems (i.e. not MS-Windows)
-writen initially in C. Some may call it Lektor mk 7. It was writen by Hubert
-\'Taiite' HIRTZ, Maël 'Kubat' MARTIN and Louis 'Elliu' GOYARD. These people
-also helped: Loïc 'Sting' ALLÈGRE and Etienne 'Pelle' BRATEAU.
-.PP
-The up\-to\-date source code is available via Git from Gitlab\&. See
-\fBhttps://git\&.iiens\&.net/martin2018/lektor\fP. The source code is
-provided under the \fIISC\fP licence.
-.fi
-.SH "RELATED SITES AND THE LEKTOR FAQ"
-Just see one of the dev from lektor or a bakateux if you have some questions
-about lektor.
-.PP
-.PD 0
-.TP
-\fBhttps://kurisu.iiens.net\fP  The depo site for the karaoke base
-.TP
-\fBhttps://manga.iiens.net\fP   The home website for the Bakaclub
-.PD
 .SH "FILES"
 .PD 0
 .TP