Describes the changes made by closing issue 582 for release-notes

Closes 582

docs/web/release-notes-5.0.md

@@ -215,6 +215,25 @@ use the `TFEL` libraries in `C++` projects, using either the
 
 # Issues fixed
 
+## Issue 582: [cast3m interface] add explicit names and 4-letter mapping of internal variables to the castem file
+
+Adds the correspondence between variable names and the 4-letter
+names used in castem to the example `.dgibi` file, generated by `MFront`
+with castem interfaces. The mapping is written in the file as a comment,
+for example in the form :
+
+```
+** List of material properties:
+**
+** - YOUN: YoungModulus
+** - NU: PoissonRatio
+** - RHO: MassDensity
+** - H: HardeningSlope
+** - SO: Yield strength
+```
+
+For more details, see <https://github.com/thelfer/tfel/issues/582>
+
 ## Issue 585: [mfront] Allow to override inputs in material properties
 
 ~~~{.bash}
@@ -259,4 +278,4 @@ For more details, see <https://github.com/thelfer/tfel/issues/526>
 
 ## Issue 476: [generic interface] Add support for arrays of thermodynamic forces
 
-For more details, see <https://github.com/thelfer/tfel/issues/476>
+For more details, see <https://github.com/thelfer/tfel/issues/476>