Justin 2275587149 Add note on leap seconds ...

Clarify the local time is Unix time and add note on leap seconds.

2019-02-11 13:29:54 +00:00

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0_beacon-chain.md

Add note on leap seconds

2019-02-11 13:29:54 +00:00

1_shard-data-chains.md

Fixed end of code block

2019-02-10 15:47:26 -06:00