feat: Added minimal vim motions navigation (#151)

Co-authored-by: Олег Талантов <otalantov@astralinux.ru>

Author: winterka

docs/usage.md

@@ -10,11 +10,11 @@
 | R      | Reverse           |
 | Ctrl+C | Exit              |
 | F10    | Exit              |
-| ↑↓     | Line Up / Down    |
+| ↑↓ / jk| Line Up / Down    |
 | PgUp   | Page Up           |
 | PgDown | Page Down         |
 | Home   | Navigate to Start |
-| End    | Navigate to End   |
+| End / G| Navigate to End   |
 | ?      | Show/Hide help    |
 
 > Attempting to navigate past the last line in the log will put you in follow mode.

internal/keymap/keymap.go

@@ -30,7 +30,7 @@ func GetDefaultKeys() KeyMap {
 		),
 		Back: key.NewBinding(
 			key.WithKeys("esc", "q"),
-			key.WithHelp("esc", "Back"),
+			key.WithHelp("(esc, q)", "Back"),
 		),
 		Open: key.NewBinding(
 			key.WithKeys("enter"),
@@ -40,16 +40,16 @@ func GetDefaultKeys() KeyMap {
 			key.WithKeys("right"),
 		),
 		Up: key.NewBinding(
-			key.WithKeys("up"),
-			key.WithHelp("↑", "Up"),
+			key.WithKeys("up", "k"),
+			key.WithHelp("(↑, k)", "Up"),
 		),
 		Reverse: key.NewBinding(
 			key.WithKeys("r"),
 			key.WithHelp("r", "Reverse"),
 		),
 		Down: key.NewBinding(
-			key.WithKeys("down"),
-			key.WithHelp("↓", "Down"),
+			key.WithKeys("down", "j"),
+			key.WithHelp("(↓, j)", "Down"),
 		),
 		PageUp: key.NewBinding(
 			key.WithKeys("pgup"),
@@ -73,7 +73,7 @@ func GetDefaultKeys() KeyMap {
 		),
 		GotoBottom: key.NewBinding(
 			key.WithKeys("end", "G"),
-			key.WithHelp("end", "go to end"),
+			key.WithHelp("(end, G)", "go to end"),
 		),
 	}
 }