rearranging data, revision of code, new look for result figures, equation citations added

CHANGELOG.md

 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [1.1] - 2022-05-09
+### Added
+- Equation numbers in documentation
+- File `./data/Excel4HIP.xlsx` file for testing purposes
+
+### Changed
+- Mistake related to units in HIP calculations fixed
+- Test dataset adjusted to the `Excel4HIP.xlsx`
+- HIP calculation cell modified to differentiate steps for recalculating non-SI-units
+- Documentation modified and rephrased,
+- Illustrations were moved to `./figures`
+- Look and code for plotting test results
+
+### Removed
+- Test datasets in `.txt`, `.xlsx` and `.dat` formats
+- Dependence on `ipywidgets` and `openpyxl`
+
+
 ## [1.0] - 2022-04-08
 ### Added
 - DOI in Readme

README.md

@@ -20,9 +20,7 @@ The energy values provided by **Py4HIP** as ASCII lists and map representations
 - [pandas](https://github.com/pandas-dev/pandas)
 - [scipy](https://github.com/scipy/scipy)
 - [pathlib](https://docs.python.org/3/library/pathlib.html) (for creating folders)
-- [ipywidgets](https://github.com/jupyter-widgets/ipywidgets) (for checkbox)
 - [matplotlib](https://github.com/matplotlib/matplotlib) (for plotting figures)
-- [openpyxl](https://foss.heptapod.net/openpyxl/openpyxl) (for output in excel format)
 
 ### Installation
 The following instructions explain how to install the required packages with [`conda`](https://docs.conda.io/en/latest/).