Merge branch '4-update-sbc-doc-related-to-fldread-changes-see-21-in-nemo-project' into 'main'

Resolve "update SBC doc related to fldread changes (see #21 in Nemo project)"

Closes #4

See merge request !12

latex/NEMO/subfiles/chap_SBC.tex

@@ -257,6 +257,9 @@ where
   Records are assumed to be dated at the middle of the forcing period.
   For example, when using a daily forcing with time interpolation,
   linear interpolation will be performed between mid-day of two consecutive days.
+  If you want to change this behaviour, it is possible to prepend the variable name with a '-' or a '+' sign.
+  In the first case, the records will be dated at the beginning of the forcing period,
+  while in the second case, the records will be dated at the end of the forcing period.
 \item [Climatological forcing]: a logical to specify if a input file contains climatological forcing which can be cycle in time,
   or an interannual forcing which will requires additional files if
   the period covered by the simulation exceeds the one of the file.