Added authors information for the demos

demos/2D-IR-Raman/README.md

@@ -1,6 +1,9 @@
 2D IR-Raman spectrum of liquid water
 ====================================
 
+Author:
+`Thomislav Begusic <[email protected]>`
+
 This example demonstrates the use of equilibrium-nonequilibrium ring-polymer molecular dynamic (RPMD) within the framework of i-PI to simulate 2D IR-Raman spectrum of liquid water. 
 For theory of equilibrium-nonequilibrium RPMD, see
 1. [T. Begusic, X. Tao, G. A. Blake, T. F. Miller III, "Equilibrium–nonequilibrium ring-polymer molecular dynamics for nonlinear spectroscopy", J. Chem. Phys. 156, 131102 (2022).](https://doi.org/10.1063/5.0087156)

demos/al6xxx-kmc/README.md

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 Kinetic Monte Carlo for vacancy diffusion in an Al-Si-Mg alloy
 ==============================================================
 
+Author: `Michele Ceriotti <[email protected]>`
+
 This example is somewhat atypical, in that it demonstrates a very ad hoc implementation of 
 KMC, designed specifically to run simulations of vacancy diffusion in an FCC alloy of aluminum
 with ~1% Si and Mg. 

demos/alchemical-isotope-exchanges/README.md

@@ -1,6 +1,8 @@
 Alchemical isotope exchanges
 ============================
 
+Author: `Michele Ceriotti <[email protected]>`
+
 This example demonstrates the use of the alchemical exchange method implemented in i-PI
 (cf. the theory introduced in [Jian Liu, Richard S Andino, Christina M Miller, Xin Chen, David M Wilkins, Michele Ceriotti, David E Manolopoulos, “A surface-specific isotope effect in mixtures of light and heavy water”, J. Phys. Chem. C 117(6), 2944-2951 (2013)](http://dx.doi.org/10.1021/jp311986m) [bibtex](https://www.doi2bib.org/bib/10.1021/jp311986m), 
 and the implementation discussed in [Cheng, Bingqing, Jörg Behler, Michele Ceriotti, “Nuclear Quantum Effects in Water at the Triple Point: Using Theory as a Link Between Experiments.” J. Phys. Chem. Lett. 7(12), 2210-2215 (2016)](https://ipi-code.org/about/features/dx.doi.org/10.1021/acs.jpclett.6b00729) [bibtex](http://www.doi2bib.org/bib/10.1021%2Facs.jpclett.6b00729) ).

demos/ensemble-deltamu/README.md

@@ -1,6 +1,10 @@
 Solid-liquid free energy with uncertainty quantification
 ========================================================
 
+Authors: 
+`Matthias Kellner <[email protected]>`
+`Michele Ceriotti <[email protected]>`
+
 This example demonstrates a rather sophisticated setup to compute the $\Delta\mu_{SL}$ 
 for the ice/water system using an ensemble of ML potentials, including an evaluation of
 the uncertainty using a direct propagation of the ensemble (cf. [Imbalzano2021, Kellner2024]).

demos/para-h2-tutorial/README.md

@@ -1,6 +1,9 @@
 An introductory tutorial based on the p-H2 driver
 =================================================
 
+Authors: `Thomas More`, `Michele Ceriotti <[email protected]>`
+
+
 This gives an example of simulations para-H2 with the isotropic Silvera-Goldman pair
 potential, as discussed in the tutorial section of the user manual. The examples include
 classical NVT and NPT simulations, as well as imaginary-time path integral MD.