update release and changelog files

Author: octonato

conf/playReleases.json

@@ -1,11 +1,19 @@
 {
     "latest": {
-        "version": "2.8.2",
-            "date": "May 21 2020"
+        "version": "2.8.3",
+            "date": "Oct 26 2020"
     },
     "development": [
     ],
     "previous": [
+        {
+            "version": "2.7.6",
+            "date": "Oct 26 2020"
+        },   
+        {
+            "version": "2.8.2",
+            "date": "May 21 2020"
+        },
         {
             "version": "2.7.5",
             "date": "May 20 2020"

public/markdown/changelog.md

@@ -1,3 +1,18 @@
+
+## Play 2.8.3
+
+*Released 26 October 2020
+
+[All changes](https://github.com/playframework/playframework/compare/2.8.2...2.8.3/)
+[GitHub milestone](https://github.com/playframework/playframework/milestone/103?closed=1)
+
+## Play 2.7.6
+
+*Released 26 October 2020
+
+[All changes](https://github.com/playframework/playframework/compare/2.7.5...2.7.6/)
+[GitHub milestone](https://github.com/playframework/playframework/milestone/104?closed=1)
+
 ## Play 2.8.2
 
 *Released 21 May 2020