some updates to ford docs

Author: jacobwilliams

json-fortran.md

@@ -29,8 +29,9 @@ coloured_edges: true
 extra_filetypes: .inc !
 print_creation_date: true
 creation_date: %Y-%m-%d %H:%M %z
-extra_mods: iso_fortran_env:https://gcc.gnu.org/onlinedocs/gfortran/ISO_005fFORTRAN_005fENV.html
-            ifcore:https://software.intel.com/en-us/fortran-compiler-developer-guide-and-reference-tracebackqq
+extra_mods: iso_fortran_env:https://fortranwiki.org/fortran/show/iso_fortran_env
+            ifcore:https://www.intel.com/content/www/us/en/docs/fortran-compiler/developer-guide-reference/2024-0/tracebackqq.html
+            ieee_arithmetic:https://fortranwiki.org/fortran/show/ieee_arithmetic
 md_extensions: markdown.extensions.toc
                markdown.extensions.smarty
 ---

src/json_string_utilities.F90

@@ -484,9 +484,9 @@ subroutine unescape_string(str, error_message)
 
     implicit none
 
-    character(kind=CK,len=:),allocatable,intent(inout) :: str           !! in: string as stored
-                                                                        !! in a [[json_value]].
-                                                                        !! out: decoded string.
+    character(kind=CK,len=:),allocatable,intent(inout) :: str           !! * in: string as stored
+                                                                        !!   in a [[json_value]].
+                                                                        !! * out: decoded string.
     character(kind=CK,len=:),allocatable,intent(out)   :: error_message !! will be allocated if
                                                                         !! there was an error
 
@@ -617,7 +617,7 @@ end subroutine unescape_string
 
 !*****************************************************************************************
 !> author: Jacob Williams
-!  date:6/14/2014
+!  date: 6/14/2014
 !
 !  Returns true if the string is a valid 4-digit hex string.
 !