Release version 10.

meson-gse.build: Bump version to 10.
README.md: Add v10 changelog.

README.md

@@ -45,7 +45,7 @@ site](https://extensions.gnome.org/extension/1720/weeks-start-on-monday-again/).
 Or download the zip file from the GitHub [releases
 page](https://github.com/F-i-f/weeks-start-on-monday/releases) and
 unzip [the
-file](https://github.com/F-i-f/weeks-start-on-monday/releases/download/v9/weeks-start-on-monday@extensions.gnome-shell.fifi.org.v9.shell-extension.zip)
+file](https://github.com/F-i-f/weeks-start-on-monday/releases/download/v10/weeks-start-on-monday@extensions.gnome-shell.fifi.org.v10.shell-extension.zip)
 in the
 `~/.local/share/gnome-shell/extensions/weeks-start-on-monday@extensions.gnome-shell.fifi.org`
 directory (you may have to create the directory).
@@ -70,6 +70,11 @@ directory (you may have to create the directory).
 
 ## Changelog
 
+### Version 10
+#### December 18, 2021
+
+- Add Dutch translation.
+
 ### Version 9
 #### December 18, 2021
 

meson-gse.build

@@ -16,7 +16,7 @@
 
 gse_project({weeks-start-on-monday},
 	    {extensions.gnome-shell.fifi.org},
-	    {9},
+	    {10},
 {
 gse_sources	    += []
 gse_libs	    += [gse_lib_convenience]