Add Pleroma milestones to Fediverse 2020 post

source/_posts/fediverse-in-2020.md

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 title: "Fediverse in 2020"
@@ -104,6 +103,8 @@ At least <span class="u-emphasize">19 new projects</span> joined Fediverse in 20
 
 ✔ `February:` Simon Urli [announces](https://forum.xwiki.org/t/new-application-activitypub/6186) plans to add ActivityPub to XWiki, an open-source Wiki platform; receives funding from NGI Zero (NLNet)
 
+✔ `March:` Pleroma introduces federated emoji reactions in [its 2.0 release](https://pleroma.social/blog/2020/03/08/releasing-pleroma-2-0-0/).
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 ✔ `April:` The French ministry deploys [about 35 PeerTube instances](https://mamot.fr/@0/103975207534068559), creating a vast platform of educational videos without tracking and advertisements
 
 ✔ `April 7:` New project OpenEngiadina [joins the scene](https://chaos.social/@pukkamustard/103956215440029088). The project was supported by NGI Zero (NLnet)
@@ -123,6 +124,8 @@ blame Google for double standards and demand to also ban Twitter apps and Chrome
 
 ✔ `August 8:` [@cj](https://mastodon.technology/@cj) creates an 💡 ActivityPub [library for developers](https://library.activitypub.dev/shelves.html) where one can find articles about ActivityPub protocol and other technical topics
 
+✔ `August 28:` Pleroma introduces ActivityPub chats [in 2.1.0 release](https://pleroma.social/blog/2020/08/28/releasing-pleroma-2-1-0/).
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 ✔ `September 09:` Funkwhale releases [first stable version](https://dev.funkwhale.audio/funkwhale/funkwhale/-/tags/1.0)
 
 ✔ `September 15:` Mario Vavti, [Hubzilla](/en/hubzilla) core developer, achieves a grant from NGIZero (NLnet)