added old version to docs (#649)

* added old version to docs

* updated docs

* updated docs

docs/user_guide.md

@@ -73,18 +73,18 @@ gf_free().
 
 # Extracting GRIB2 Fields from a GRIB2 file
 
-Subroutine getgb2() can be used to extract a specified field from a
-file containing many GRIB2 messages. getgb2() searches an index to
+Subroutine getgb2i2() can be used to extract a specified field from a
+file containing many GRIB2 messages. getgb2i2() searches an index to
 find the location of the user specified field. The index can be
 supplied from a seperate GRIB2 index file, or it can be generated
 internally.
 
-If getgb2() is used, call gf_finalize() to free all
+If getgb2i2() is used, call gf_finalize() to free all
 memory. gf_finalize() only needs to be called once, no matter how many
-times getgb2() is called.
+times getgb2i2() is called.
 
 The GRIB2 file (and the index file, if supplied) must be opened with
-a call to subroutine baopen() prior to the call to getgb2().
+a call to subroutine baopen() prior to the call to getgb2i2().
 
 The decoded information for the selected GRIB field is returned in a
 derived type variable, gfld. Gfld is of type grib_mod::gribfield;
@@ -144,6 +144,7 @@ http://www.nws.noaa.gov/tdl/iwt/grib2/frameset_grib2.htm.
 
 ## Documentation for Previous Versions of NCEPLIBS-g2
 
+* [NCEPLIBS-g2 Version 3.4.8](ver-3.4.8/index.html)
 * [NCEPLIBS-g2 Version 3.4.7](ver-3.4.7/index.html)
 * [NCEPLIBS-g2 Version 3.4.6](ver-3.4.6/index.html)
 * [NCEPLIBS-g2 Version 3.4.5](ver-3.4.5/index.html)

src/g2getgb2.F90

@@ -187,7 +187,7 @@ end subroutine getgb2
 !> - 99 request not found
 !> - other gf_getfld grib2 unpacker return code
 !>
-!> @author Ed Hartnett @date 2024-03-19
+!> @author Ed Hartnett, Mark Iredell @date 2024-03-19
 subroutine getgb2i2(lugb, lugi, j, jdisc, jids, jpdtn, jpdt, jgdtn, jgdt,  &
      unpack, idxver, k, gfld, iret)
   use grib_mod