Fix #95: Add ^I as an alternative to Insert

README.md

@@ -221,7 +221,7 @@ optional arguments:
     →, ↵, l, ^M | Open file or enter dir
  ←, Bksp, h, ^H | Go to parent dir
              ^O | Open with...
-         Insert | Toggle navigate-as-you-type
+     Insert, ^I | Toggle navigate-as-you-type
               ~ | Go HOME
               & | Go to initial dir
               - | Go to last visited dir

nnn.1

@@ -48,7 +48,7 @@ Open file or enter directory
 Back up one directory level
 .It Ic ^O
 Open with a custom application
-.It Ic [Insert]
+.It Ic [Insert], ^I
 Toggle navigate-as-you-type mode
 .It Ic ~
 Change to the HOME directory

nnn.c

@@ -1144,6 +1144,7 @@ filterentries(char *path)
 			case CONTROL('G'): // fallthrough
 			case CONTROL('X'): // fallthrough
 			case CONTROL('F'): // fallthrough
+			case CONTROL('I'): // fallthrough
 			case CONTROL('T'):
 				if (len == 1)
 					cur = oldcur;
@@ -1898,7 +1899,7 @@ show_help(char *path)
    "4→, ↵, l, ^M | Open file or enter dir\n"
 "1←, Bksp, h, ^H | Go to parent dir\n"
 	    "d^O | Open with...\n"
-	"9Insert | Toggle navigate-as-you-type\n"
+    "5Insert, ^I | Toggle navigate-as-you-type\n"
 	     "e~ | Go HOME\n"
 	     "e& | Go to initial dir\n"
 	     "e- | Go to last visited dir\n"

nnn.h

@@ -118,6 +118,7 @@ static struct key bindings[] = {
 	{ '/',            SEL_FLTR,      "",     "" },
 	/* Toggle filter mode */
 	{ KEY_IC,         SEL_MFLTR,     "",     "" },
+	{ CONTROL('I'),   SEL_MFLTR,     "",     "" },
 	/* Desktop search */
 	{ CONTROL('_'),   SEL_SEARCH,    "",     "" },
 	/* Toggle hide .dot files */