added jumping to top an bottom of file

src/modes/Edit.cpp

@@ -96,6 +96,14 @@ namespace groove {
 				case '$':
 					this->editor.x = this->editor.buffer->at(this->editor.y).size();
 					break;
+				case 'g':
+					this->editor.y = 0;
+					this->editor.offset = 0;
+					break;
+				case 'G':
+					this->editor.y = this->editor.buffer->size();
+					this->editor.offset = this->editor.buffer->size() - LINES + 2;
+					break;
 			}
 		}
 	}