Add statpixel to bots using poise in README.md (#275) #1067

Job	Run time
Clippy	52s
Build docs	2m 21s
Rustfmt	7s
Test (MSRV)	1m 18s
Test (stable)	2m 7s
Test (beta)	1m 56s
Test (nightly)	1m 42s
Test (macOS)	1m 24s
Test (Windows)	4m 38s
Test (no features)	1m 12s
Test (all features - simdjson, cargo test --all-features --lib --tests --examples)	1m 16s
Test (native TLS, cargo test --all-features --features serenity/native_tls_backend --lib --tests ...	1m 15s
	20m 8s

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