[#2506] update platforms.rst

diff --git a/platforms.rst b/platforms.rst
index 8a70c3e40cd0635cbc958fec0167a916c58fe475..cb3941e845f602d44b753989eeeca4723a8a8573 100644 (file)
--- a/platforms.rst
+++ b/platforms.rst
@@ -21,12 +21,13 @@ Regularly tested platforms
 Kea is officially supported on Alpine, CentOS, Fedora, Ubuntu, Debian,
 and FreeBSD systems. Kea-|release| builds have been tested on:
 
-* Alpine - 3.12, 3.13
+* Alpine — 3.12, 3.13
 * CentOS — 7
 * Debian — 9, 10, 11
 * Fedora — 33, 34
 * FreeBSD — 12.1, 13.0
-* Ubuntu — 18.04, 20.04, 21.04
+* RHEL — 8
+* Ubuntu — 18.04, 20.04
 
 There are currently no plans to port Kea to Windows systems.
 
@@ -39,7 +40,7 @@ do so quickly due to lack of hardware, less familiarity on the part of
 engineering staff, and other constraints.
 
 * Alpine — 3.11
-* FreeBSD - 11.4
+* FreeBSD — 11.4
 * macOS — 10.13, 10.14
 
 Community maintained