Update About

About.md

@@ -1,6 +1,6 @@
 [Home page](ptychoScopy)
 
-
+##  Formulas
 #####  Reconstruction probe window
 is given by
 
@@ -26,4 +26,17 @@ is given by
 ```math
 pix_{ptycho} = \frac{2\lambda CL_{eff}}{N_{eff}d_{eff}}
 ```
-where $`\lambda`$ is electron wavelength, $`CL_{eff}`$ the effective detector camera length, $`N_{eff}`$ the number of effective pixels and $`d_{eff}`$ the effective real space pixel size.
+where $`\lambda`$ is electron wavelength, $`CL_{eff}`$ the effective detector camera length, $`N_{eff}`$ the number of effective pixels and $`d_{eff}`$ the effective real space pixel size.
+
+
+
+## Tested packages
+Proper widgets layout was tested in JupyterLab 3.4.4.
+The code was tested on packages:
+
+- Numpy version  1.26.1
+- Matplotlib version  3.8.1
+- Pandas version  2.1.2
+- Ipywidgets version  7.6.5
+- Plotly version  5.9.0
+