diff --git a/README.md b/README.md
index b4b3fc69f95208c6f1cbe8ea451ff668d3287e1f..d3a8786bd18545ccfc810d68ecdd0c00f02dc46a 100644
--- a/README.md
+++ b/README.md
@@ -55,10 +55,12 @@ The following methods are defined within the class:
 
 These routines are based on the publication "Computation of the surface electron-energy-loss spectrum in specular geometry for an arbitrary plane-stratified medium" by P. Lambin, J.-P. Vigneron, and A. A. Lucas, in the Journal "Computer Physics Communications 60, 351-64(1990)".
 
-The code is modified to comply with Fortran90 and wraped to python functions. See the example in Examples/calcHREELS1.py for NiO(001). The parameters for epsilon_infinity "eps": 5.25, as well as frequency and width for the TO phonon,  "wTO": [393.7], "gTO": [10.8], and the LO phonon, "wLO": [584.7], "gLO": [10.8], need to be specified.
+It allows to handle a heterostructure of different materials in a easy way. The code is modified to comply with Fortran90 and wraped to python functions. See the example in Examples/calcHREELS1.py for NiO(001).
 
 Complex calculations for perovskite oxides are provided in the examples calcHREELS2.py and calcHREELS3.py.
 
 
+# dielectrics20
 
+These routines allow to model the dielectric properties of materials described by different oscillators and Drude responses. Quantities as real and imaginary part of the dielectric function, optical conductivity, IR reflectivity, and surface loss are calculated. The sum rules of optical conductivity can be analyzed.
 
diff --git a/pyproject.toml b/pyproject.toml
index f1021859ee781ee356f251d6c82dd894ab5abba2..aa8895ad8b5e175302b8ed140943d3a960c678da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "libhreels"
-version = "2.0.2"
+version = "2.0.3"
 description = "Handling, simulating, and plotting HREELS and Auger spectroscopy data"
 authors = ["Wolf Widdra <wolf.widdra@physik.uni-halle.de>"]
 include = ["*./libhreels/*"]