Rename with_panels to num_panels

examples/simple.rs

@@ -17,7 +17,7 @@ fn main() {
         .show_position_panel(true)
         .with_border_style(BorderStyle::Unicode)
         .enable_squeezing(false)
-        .with_panels(2)
+        .num_panels(2)
         .build();
     printer.print_all(&input[..]).unwrap();
 }

src/bin/hexyl.rs

@@ -341,7 +341,7 @@ fn run() -> Result<(), AnyhowError> {
         .show_position_panel(show_position_panel)
         .with_border_style(border_style)
         .enable_squeezing(squeeze)
-        .with_panels(panels)
+        .num_panels(panels)
         .build();
     printer.display_offset(skip_offset + display_offset);
     printer.print_all(&mut reader).map_err(|e| anyhow!(e))?;

src/lib.rs

@@ -187,8 +187,8 @@ impl<'a, Writer: Write> PrinterBuilder<'a, Writer> {
         self
     }
 
-    pub fn with_panels(mut self, panels: u16) -> Self {
-        self.panels = panels;
+    pub fn num_panels(mut self, num: u16) -> Self {
+        self.panels = num;
         self
     }