add new posters and source code to download page

Makefile

@@ -5,7 +5,7 @@ SHARED_FILES := stallman.webp stallman_2024.webp favicon.ico \
 				moon.svg sun.svg narrow_light.svg narrow_dark.svg wide_light.svg wide_dark.svg lang_cz.svg lang_en.svg \
 				styles.css icons.css \
 				countdown.js theme.js lang.js
-STATIC_ASSETS := jetbrains_mono.woff2
+STATIC_ASSETS := jetbrains_mono.woff2 poster_cz.png poster_en.png
 SEARCH_REPLACE := lib/search_and_replace/target/release/search_and_replace
 COMPONENTS := head.html header.html nav.html footer.html
 
@@ -72,6 +72,10 @@ dst/%.webp: images/%.jpg
 	@mkdir -p $(@D)
 	magick $< $@
 
+dst/%.png: images/%.png
+	@mkdir -p $(@D)
+	ln -f $< $@
+
 dst/%.svg: icons/%.svg
 	@mkdir -p $(@D)
 	ln -f $< $@

pages/cz/downloads.html

@@ -34,6 +34,9 @@
 			<p><a href="/poster_en.jpg" download>
 				Plakát v angličtině (1414x2000 JPG - určeno pro webovou distribuci)
 			</a></p>
+
+			<h2>Zdrojové soubory webu</h2>
+			<p><a href="/libre_liberec.tar.gz">Kód a soubory (.tar.gz)</a></p>
 		</main>
 		<!--#include virtual="components/footer.html" -->
 	</body>

pages/en/downloads.html

@@ -34,6 +34,9 @@
 			<p><a href="/poster_cz.jpg" download>
 				Poster in Czech (1414x2000 JPG - for web distribution)
 			</a></p>
+
+			<h2>Web source files</h2>
+			<p><a href="/libre_liberec.tar.gz">Source code and files (.tar.gz)</a></p>
 		</main>
 		<!--#include virtual="components/footer.html" -->
 	</body>