dconf, dconf-write: add page (#5967)

pages/linux/dconf-write.md

@@ -0,0 +1,24 @@
+# dconf write
+
+> Write a value to a dconf database path.
+> More information: <https://developer.gnome.org/dconf>.
+
+- Write a string to a dconf path (note the nested quotes):
+
+`dconf write {{/example/dconf/path}} "'{{Example Value}}'"`
+
+- Write a boolean to a dconf path:
+
+`dconf write {{/example/dconf/path}} {{true|false}}`
+
+- Write an integer to a dconf path:
+
+`dconf write {{/example/dconf/path}} {{16}}`
+
+- Write an array to a dconf path:
+
+`dconf write {{/example/dconf/path}} "[{{'My First Value', 'My Second Value'}}]"`
+
+- Write an empty array to a dconf path:
+
+`dconf write {{/example/dconf/path}} "@as []"`