gdown: add page (#13272)

Co-authored-by: spageektti <git@spageektti.cc>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>

pages/common/gdown.md

@@ -0,0 +1,24 @@
+# gdown
+
+> Download files from Google Drive and other URLs.
+> More information: <https://github.com/wkentaro/gdown>.
+
+- Download a file from a URL:
+
+`gdown {{url}}`
+
+- Download using a file ID:
+
+`gdown {{file_id}}`
+
+- Download with fuzzy file ID extraction (also works with <https://docs.google.com> links):
+
+`gdown --fuzzy {{url}}`
+
+- Download a folder using its ID or the full URL:
+
+`gdown {{folder_id|url}} -O {{path/to/output_directory}} --folder`
+
+- Download a tar archive, write it to `stdout` and extract it:
+
+`gdown {{tar_url}} -O - --quiet | tar xvf -`