Fix code link and other stuff #310

Job	Run time
Rust	1m 43s
Acala (version locked)	50s
ComposableFI (version locked)	1m 14s
Astar (version locked)	49s
Cumulus (version locked)	49s
Moonbeam (version locked)	49s
Polkadot (version locked)	58s
Substrate (version locked)	49s
Polkadot (master)	53s
	8m 54s

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