Describes a bit the project history (yarnpkg#468)

* Create HISTORY.md

* Update HISTORY.md

HISTORY.md

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+The people described in this document made significant and/or recurring contributions to Yarn in various aspects. Please don't edit this list as part of a feature or bugfix PR.
+
+Note that it's sometimes hard to keep track of everyone (the v1 trunk has 500+ contributors, and the v2 trunk already 29), so this list is by no means extensive. Still, it provides a decent picture of who to contact for information in case we later lose context over something.
+
+## 2.0.0 - current
+
+### Project lead
+
+- Maël Nison
+
+### Active contributors
+
+- Bram Gotink (Constraints)
+- Daniel Almaguer (Various)
+- Daniel Lo Nigro (Release workflow)
+- Marc-Antoine (Windows support)
+- Sebastian Silbermann (Various)
+- Victor Vlasenko (PnPify)
+- Will Griffiths (Test workflow)
+
+## 1.9.0 - 1.18.0 (~14 months)
+
+### Project lead
+
+- Maël Nison
+
+### Active contributors
+
+- Daniel Lo Nigro (Release workflow)
+- Jeff Valore (Audit)
+- Haroen Viaene (Website)
+
+## 1.0.0 - 1.9.0 (~13 months)
+
+### Project leads
+
+- Burak Yiğit Kaya
+- Maël Nison
+
+### Active contributors
+
+- Daniel Lo Nigro (Release workflow)
+- Haroen Viaene (Website)
+- Kaylie Kwon (Resolution overrides)
+- Jeff Valore (Various)
+
+## 0.20.0 - 0.28.4 (~6 months)
+
+### Project lead
+
+- Konstantin Raev
+
+### Active contributors:
+
+- Daniel Lo Nigro (Release workflow)
+- Haroen Viaene (Website)
+- Jeff Valore (Various)
+- Maël Nison (Various)
+- Simon Vocella (Infra)
+
+## First commit - 0.20.0 (~17 months)
+
+### Project leads
+
+- Sebastian McKenzie
+- Konstantin Raev