Updated Spanish README to match the current state of the main README (updated server list, added Wayland support section, among other things).
Reworded certain parts for clarity.
Ensured the tone was consistent. (Some parts used the informal tone while others used the formal tone, even in the same sentence)
Corrected small mistakes.
Signed-off-by: RelatedTitle <relatedtitle@protonmail.com>
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