doc: kernel: services: interrupts: Add markup for generated files

Apply `:file:` markup to file names in the "Files generated by the script"
section under "Implementation Details" to improve clarity and readability.

Signed-off-by: Yasushi SHOJI <[email protected]>

Author: yashi

doc/kernel/services/interrupts.rst

@@ -689,16 +689,16 @@ Files generated by the script
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The interrupt tables generator script creates 3 files:
-isr_tables.c, isr_tables_swi.ld, and isr_tables_vt.ld.
+:file:`isr_tables.c`, :file:`isr_tables_swi.ld`, and :file:`isr_tables_vt.ld`.
 
-The isr_tables.c will contain all the structures for interrupts, direct interrupts and
+The :file:`isr_tables.c` will contain all the structures for interrupts, direct interrupts and
 shared interrupts (if enabled). This file implements only all the structures that
 are not implemented by the application, leaving a comment where the interrupt
 not implemented here can be found.
 
-Then two linker files are used. The isr_tables_vt.ld file is included in place
+Then two linker files are used. The :file:`isr_tables_vt.ld` file is included in place
 where the interrupt vectors are required to be placed in the selected architecture.
-The isr_tables_swi.ld file describes the placement of the software interrupt table
+The :file:`isr_tables_swi.ld` file describes the placement of the software interrupt table
 elements. The separated file is required as it might be placed in writable on nonwritable
 section, depending on the current configuration.