Fix all doc warnings

framework/aster-frame/src/arch/x86/cpu.rs

@@ -309,7 +309,7 @@ impl UserContextApiInternal for UserContext {
     }
 }
 
-/// As Osdev Wiki defines(https://wiki.osdev.org/Exceptions):
+/// As Osdev Wiki defines(<https://wiki.osdev.org/Exceptions>):
 /// CPU exceptions are classified as:
 ///
 /// Faults: These can be corrected and the program may continue as if nothing happened.

framework/aster-frame/src/arch/x86/device/serial.rs

@@ -7,7 +7,7 @@ use crate::arch::x86::device::io_port::{IoPort, ReadWriteAccess, WriteOnlyAccess
 /// A serial port.
 ///
 /// Serial ports are a legacy communications port common on IBM-PC compatible computers.
-/// Ref: https://wiki.osdev.org/Serial_Ports
+/// Ref: <https://wiki.osdev.org/Serial_Ports>
 pub struct SerialPort {
     pub data: IoPort<u8, ReadWriteAccess>,
     pub int_en: IoPort<u8, WriteOnlyAccess>,

framework/aster-frame/src/arch/x86/timer/pit.rs

@@ -4,7 +4,7 @@
 //! a prescaler and 3 independent frequency dividers. Each frequency divider has an output, which is
 //! used to allow the timer to control external circuitry (for example, IRQ 0).
 //!
-//! Reference: https://wiki.osdev.org/Programmable_Interval_Timer
+//! Reference: <https://wiki.osdev.org/Programmable_Interval_Timer>
 //!
 
 use crate::{

framework/aster-frame/src/boot/kcmdline.rs

@@ -5,7 +5,7 @@
 //! The format of the Asterinas command line string conforms
 //! to the Linux kernel command line rules:
 //!
-//! https://www.kernel.org/doc/html/v6.4/admin-guide/kernel-parameters.html
+//! <https://www.kernel.org/doc/html/v6.4/admin-guide/kernel-parameters.html>
 //!
 
 use alloc::{

framework/aster-frame/src/bus/pci/mod.rs

@@ -9,7 +9,7 @@
 //!
 //! Use case:
 //!
-//! ```rust norun
+//! ```rust no_run
 //! #[derive(Debug)]
 //! pub struct PciDeviceA {
 //!     common_device: PciCommonDevice,

framework/aster-frame/src/trap/irq.rs

@@ -103,7 +103,7 @@ impl Drop for IrqLine {
 ///
 /// # Example
 ///
-/// ``rust
+/// ```rust
 /// use aster_frame::irq;
 ///
 /// {