Copyright year updated in all source files

Having entered 2021, it was necessary to update the copyright years at the
top of the source files. We recommend that you do this for all your
project-specific source files also.

8 files changed, 8 insertions, 8 deletions

diff --git a/tex/src/delete-me-image-histogram.tex b/tex/src/delete-me-image-histogram.tex
index 9fe4474..8b5e4d9 100644
--- a/tex/src/delete-me-image-histogram.tex
+++ b/tex/src/delete-me-image-histogram.tex
@@ -1,6 +1,6 @@
 %% Plot the demonstration image and its histogram.
 %
-%% Copyright (C) 2019-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2019-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This file is free software: you can redistribute it and/or modify it
 %% under the terms of the GNU General Public License as published by the
diff --git a/tex/src/delete-me-squared.tex b/tex/src/delete-me-squared.tex
index c0cc609..9f80b39 100644
--- a/tex/src/delete-me-squared.tex
+++ b/tex/src/delete-me-squared.tex
@@ -1,6 +1,6 @@
 %% PGFPlots code to plot a random set of numbers as demo
 %%
-%% Copyright (C) 2019-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2019-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This file is free software: you can redistribute it and/or modify it
 %% under the terms of the GNU General Public License as published by the
diff --git a/tex/src/preamble-biblatex.tex b/tex/src/preamble-biblatex.tex
index 51806f3..e65c732 100644
--- a/tex/src/preamble-biblatex.tex
+++ b/tex/src/preamble-biblatex.tex
@@ -12,7 +12,7 @@
 %%     helps in clearly identifying the files and avoiding places that
 %%     complain about `.bib' files.
 %
-%% Copyright (C) 2018-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2018-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This file is free software: you can redistribute it and/or modify it
 %% under the terms of the GNU General Public License as published by the
diff --git a/tex/src/preamble-maneage-default-style.tex b/tex/src/preamble-maneage-default-style.tex
index 665c846..4e294a5 100644
--- a/tex/src/preamble-maneage-default-style.tex
+++ b/tex/src/preamble-maneage-default-style.tex
@@ -6,7 +6,7 @@
 %% style defined here as a preamble. To ignore it, uncomment or delete the
 %% respective line in `paper.tex'.
 %
-%% Copyright (C) 2019-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2019-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This file is free software: you can redistribute it and/or modify it
 %% under the terms of the GNU General Public License as published by the
diff --git a/tex/src/preamble-maneage.tex b/tex/src/preamble-maneage.tex
index 81d8535..2f2b393 100644
--- a/tex/src/preamble-maneage.tex
+++ b/tex/src/preamble-maneage.tex
@@ -1,6 +1,6 @@
 %% Preamble for Maneage-related features.
 %
-%% Copyright (C) 2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2020-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This LaTeX file is part of Maneage. Maneage is free software: you can
 %% redistribute it and/or modify it under the terms of the GNU General
diff --git a/tex/src/preamble-pgfplots.tex b/tex/src/preamble-pgfplots.tex
index 1d57daf..a2bf603 100644
--- a/tex/src/preamble-pgfplots.tex
+++ b/tex/src/preamble-pgfplots.tex
@@ -40,7 +40,7 @@
 %%    hasn't changed since the last build. TiKZ/PGFPlots won't rebuild the
 %%    plot.
 %
-%% Copyright (C) 2018-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2018-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% This file is part of Maneage (https://maneage.org).
 %
diff --git a/tex/src/preamble-project.tex b/tex/src/preamble-project.tex
index 4206801..2a3dd0e 100644
--- a/tex/src/preamble-project.tex
+++ b/tex/src/preamble-project.tex
@@ -4,7 +4,7 @@
 %% LaTeX usages. However, if any are not needed in your work, please feel
 %% free to remove them.
 %
-%% Copyright (C) 2018-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2018-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %% Copyright (C) YYYY Your Name <your@email.address>
 %
 %% This file is free software: you can redistribute it and/or modify it
diff --git a/tex/src/references.tex b/tex/src/references.tex
index a9c232a..3ca9699 100644
--- a/tex/src/references.tex
+++ b/tex/src/references.tex
@@ -1,7 +1,7 @@
 %% Non-software BibTeX entries. The software-specific BibTeX entries are
 %% stored in a `*.tex' file under the `tex/dependencies' directory.
 %
-%% Copyright (C) 2018-2020 Mohammad Akhlaghi <mohammad@akhlaghi.org>
+%% Copyright (C) 2018-2021 Mohammad Akhlaghi <mohammad@akhlaghi.org>
 %
 %% Copying and distribution of this file, with or without modification,
 %% are permitted in any medium without royalty provided the copyright