gdrive: add page (#2139)

pages/common/gdrive.md

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+# gdrive
+
+> Command line tool to interact with Google Drive.
+> Folder/file id can be obtained from the Google Drive folder or id url.
+
+- Upload a local path to the parent folder with the specified id:
+
+`gdrive upload -p {{id}} {{path/to/file_or_folder}}`
+
+- Download file or directory by id to current directory:
+
+`gdrive download {{id}}`
+
+- Download to a given local path by its id:
+
+`gdrive download --path {{path/to/folder}} {{id}}`
+
+- Create a new revision of an id using a given file or folder:
+
+`gdrive update {{id}} {{path/to/file_or_folder}}`