📝 man page

close #34

Also install README to doc directory.

.gitignore

@@ -0,0 +1 @@
+man/*.gz

Makefile

@@ -2,10 +2,21 @@ NAME=gister
 
 PREFIX?=/usr/local
 BINDIR=${PREFIX}/bin
+MANDIR=${PREFIX}/man/man1
+DOCDIR=${PREFIX}/share/doc/${NAME}
 
-install: ${NAME}
+install: man/${NAME}.1.gz
 	@mkdir -p ${BINDIR}
 	@install -c -m 755 bin/${NAME}  ${BINDIR}/${NAME}
+	@mkdir -p ${MANDIR}
+	@install -c -m 644 man/${NAME}.1.gz ${MANDIR}/${NAME}.1.gz
+	@mkdir -p ${DOCDIR}
+	@install -c -m 644 README.md ${DOCDIR}/README.md
+
+man/${NAME}.1.gz:
+	@gzip -k man/${NAME}.1
 
 uninstall:
 	@rm -f ${BINDIR}/${NAME}
+	@rm -f ${MANDIR}/${NAME}.1.gz
+	@rm -rf ${DOCDIR}

man/gister.1

@@ -0,0 +1,34 @@
+.Dd January 22, 2024
+.Dt GISTER 1
+.Os
+.Sh NAME
+.Nm gister
+.Nd "sync GitHub gists to local machine"
+.Sh SYNOPSIS
+.Nm
+.Fl h
+.Nm
+.Cm init
+.Nm
+.Cm sync
+.Nm
+.Cm search
+.Ar pattern
+.Nm
+.Cm export
+.Ar gist_id
+.Ar sub_directory_name
+.Ar branch_name
+.Sh DESCRIPTION
+Run
+.Nm
+.Fl h
+for usage description.
+.Sh BUGS
+.Nm
+cannot sync more than ten million gists.
+To lift the limit, you need to modify the source code of
+.Nm .
+.Pp
+If you find other bugs, please report them at
+.Lk https://github.com/weakish/gister/issues