compseq: add Spanish translation

[kant]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page(s) have at most 8 examples.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The PR title conforms to the recommended templates.
• Version of the command being documented (if known):

[sebastiaanspeck]

Hi, would you please not delete any comments in the future? You could also minimise the comments, which hides them. Deleting them, makes them invisible and unreadable for everyone