Finally, I managed to upload code to gitlab.com:
The repository contains:
- The WordPress theme of this website, a child theme of "Twenty Fourteen",
- measurement data and scripts of the article Performance and Accuracy of xPTEQR, and
- the Matlab code for the article Spectral Norm Bounds for Hermitian Matrices.
Many commits were modified on April 12; I retrofitted all files of my WordPress theme with license headers in order to avoid licensing issues.