add `readline` config

.config/readline/inputrc

@@ -0,0 +1,28 @@
+$include /etc/inputrc
+
+# vi mode
+set editing-mode vi
+set show-mode-in-prompt on
+set vi-ins-mode-string "\1\e[01;31m\2+\1\e[0m\2"
+set vi-cmd-mode-string "\1\e[01m\2:\1\e[0m\2"
+
+set keyseq-timeout 50
+
+# history search
+$if mode=vi
+	set keymap vi-command
+	"j": history-search-forward
+	"k": history-search-backward
+	set keymap vi-insert
+	"\e[A": history-search-backward
+	"\e[B": history-search-forward
+$endif
+
+# faster completion
+"\t":menu-complete
+"\e[Z":menu-complete-backward
+set show-all-if-ambiguous on
+
+# color
+set colored-stats on
+set visible-stats on