doc(port_arm_m): fix broken intra-doc links

Author: yvt

src/r3_port_arm_m/src/lib.md

@@ -13,7 +13,7 @@ The interrupt numbers `0..16` are mapped to non-external interrupts, and most op
 
 The availability of timer sources varies greatly between MCUs and there's no one-size-fits-all solution. For this reason, [`use_port!`] does not implement [`PortTimer`] on your kernel trait type. The Arm-M architecture defines SysTick, an optional timer integrated with a processor core and most Arm-M-based MCUs are equipped with those. This crate provides an implementation of `PortTimer` that utilizes SysTick.
 
-[`PortTimer`]: r3::kernel::PortTimer
+[`PortTimer`]: r3_kernel::PortTimer
 
 ## Tickful SysTick
 

src/r3_port_arm_m/src/lib.rs

@@ -20,7 +20,7 @@
 #[doc = include_str!("../CHANGELOG.md")]
 pub mod _changelog_ {}
 
-/// The [`r3::kernel::PortThreading`] implementation.
+/// The [`r3_kernel::PortThreading`] implementation.
 #[doc(hidden)]
 pub mod threading {
     pub mod cfg;
@@ -36,7 +36,7 @@ pub mod rt {
     pub mod imp;
 }
 
-/// The tickful [`r3::kernel::PortTimer`] implementation based on SysTick.
+/// The tickful [`r3_kernel::PortTimer`] implementation based on SysTick.
 #[doc(hidden)]
 pub mod systick_tickful {
     pub mod cfg;

src/r3_port_arm_m/src/rt/cfg.rs

@@ -2,7 +2,7 @@
 /// and [`KernelTraits`] to be implemented.**
 ///
 /// [`EntryPoint`]: crate::EntryPoint
-/// [`KernelTraits`]: r3::kernel::KernelTraits
+/// [`KernelTraits`]: r3_kernel::KernelTraits
 ///
 /// This macro registers the following items:
 ///

src/r3_port_arm_m/src/systick_tickful/cfg.rs

@@ -37,7 +37,7 @@ pub trait SysTickOptions {
 /// Attach the tickful implementation of [`PortTimer`] that is based on SysTick
 /// to a given kernel trait type.
 ///
-/// [`PortTimer`]: r3::kernel::PortTimer
+/// [`PortTimer`]: r3_kernel::PortTimer
 /// [a tickful scheme]: crate#tickful-systick
 ///
 /// You should also do the following:

src/r3_port_arm_m/src/threading/cfg.rs

@@ -20,7 +20,7 @@ pub trait ThreadingOptions {
     /// The lower bound of [`MANAGED_INTERRUPT_PRIORITY_RANGE`] is bound to this
     /// value.
     ///
-    /// [`MANAGED_INTERRUPT_PRIORITY_RANGE`]: r3::kernel::PortInterrupts::MANAGED_INTERRUPT_PRIORITY_RANGE
+    /// [`MANAGED_INTERRUPT_PRIORITY_RANGE`]: r3_kernel::PortInterrupts::MANAGED_INTERRUPT_PRIORITY_RANGE
     ///
     /// Must be `0` on Armv6-M and Armv8-M Baseline because they don't support
     /// `BASEPRI`.
@@ -81,8 +81,8 @@ pub unsafe trait EntryPoint {
 /// See [the crate-level documentation](crate#kernel-timing) for possible
 /// options.
 ///
-/// [`PortThreading`]: r3::kernel::PortThreading
-/// [`PortTimer`]: r3::kernel::PortTimer
+/// [`PortThreading`]: r3_kernel::PortThreading
+/// [`PortTimer`]: r3_kernel::PortTimer
 ///
 /// # Safety
 ///