xcursorgen: add page (#5672)

pages/linux/xcursorgen.md

@@ -0,0 +1,17 @@
+# xcursorgen
+
+> Create an X cursor file from a collection of PNG images.
+> If `--prefix` is omitted, the image files must be located in the current working directory.
+> More information: <https://manned.org/xcursorgen.1>.
+
+- Create an X cursor file using a config file:
+
+`xcursorgen {{path/to/config.cursor}} {{path/to/output_file}}`
+
+- Create an X cursor file using a config file and specify the path to the image files:
+
+`xcursorgen --prefix {{path/to/image_directory/}} {{path/to/config.cursor}} {{path/to/output_file}}`
+
+- Create an X cursor file using a config file and write the output to stdout:
+
+`xcursorgen {{path/to/config.cursor}}`