Update README.md

Author: HybridsEgo

docs/README.md

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 # Halo: The Master Chief Collection
 | Available | Build | Type | Version | Date | Notes |
 | --------- | ----- | ---- | ------- | ---- | ----- |
-| ❌ | Unknown | Flight | 1.453.0.0 | | Swordflying restored in Campaign |
-| ❌ | Unknown | Flight | 1.507.0.0 | | Playtest for H1/H2/H2A/H3 |
+| ❌ | Unknown | Flight | 1.453.0.0 | 7-7-2018 | Swordflying restored in Campaign |
+| ❌ | Unknown | Flight | 1.507.0.0 | 8-15-2018 | Playtest for H1/H2/H2A/H3 |
 | ✅ | 2019.06.24.47037.2-Nightly | Flight | 1.887.0.0 | 6-28-2019 | HR |
-| ❌ | Unknown | Flight | 1.1106.0.0 | | Reach multiplayer crossplay test |
+| ❌ | Unknown | Flight | 1.1106.0.0 | 10-3-2019 | Reach multiplayer crossplay test |
 | ✅ | 2019.08.20.56885.3-Nightly-Release | Flight | 1.1035.0.0 | 8-20-2019 | HR |
 | ✅ | 2019.10.26.64867.1-Nightly-Ring1 | Flight | 1.1186.0.0 | 10-26-2019 | HR |
 | ✅ | 2020.04.15.81829.4-Nightly-Release | Flight | 1.1477.0.0 | 4-15-2020 | CE + H2