Updated CHANGELOG.md and version-compatibility.md

Author: zonia3000

CHANGELOG.md

@@ -1,6 +1,6 @@
 *Note: Numbers like (\#123) point to closed Pull Requests on the fractal-web repository.*
 
-# Unreleased
+# 1.20.0
 
 * Added body request normalizer (\#825);
 * Fixed JSON schema validation during arguments import (\#827);

docs/version-compatibility.md

@@ -4,6 +4,7 @@ The following table shows which `fractal-server` versions are compatible with wh
 
 | fractal-web | fractal-server |
 |-------------|----------------|
+| 1.20.0      | 2.16.0         |
 | 1.19.3      | 2.15.3         |
 | 1.19.2      | 2.15.3         |
 | 1.19.1      | 2.15.0         |