docs: update branches table in README

README.md

@@ -3,11 +3,11 @@
 # A heartbeat test page for Moodle
 
 - [A heartbeat test page for Moodle](#a-heartbeat-test-page-for-moodle)
+- [Branches](#branches)
 - [What is this?](#what-is-this)
   - [Front end health](#front-end-health)
   - [Application health](#application-health)
   - [Failed login detection](#failed-login-detection)
-- [Branches](#branches)
 - [Installation](#installation)
 - [Configuration](#configuration)
 - [Testing](#testing)
@@ -20,6 +20,19 @@ NOTE: In an ideal world this plugin should be redundant and most of it's functio
 
 https://tracker.moodle.org/browse/MDL-47271
 
+# Branches
+
+| Branch      | Moodle version | PHP Version |
+| ----------- | ----------- | ----------- |
+| master      | Moodle 2.7 + | Php 5.4.4+ |
+| MOODLE_39_STABLE   | Moodle 3.9 + | Php 7.2+ |
+
+The master branch is always stable and should retain very deep support for old Totara's and Moodle's back to Moodle 2.7
+
+For this reason we will continue to support php5 for some time.
+
+The MOODLE_39_STABLE branch uses the [Check API](https://moodledev.io/docs/apis/subsystems/check) exclusively.
+
 
 ## Front end health
 
@@ -109,18 +122,6 @@ The various thresholds can be configured with query params or cli args see this
 php loginchecker.php -h
 ```
 
-# Branches
-
-| Branch      | Version |
-| ----------- | ----------- |
-| master      | Moodle 2.7 + |
-| MOODLE_39_STABLE   | Moodle 3.9 + |
-
-The master branch is always stable and should retain very deep support for old Totara's and Moodle's back to Moodle 2.7
-
-For this reason we will continue to support php5 for some time.
-
-The MOODLE_39_STABLE branch uses the [Check API](https://moodledev.io/docs/apis/subsystems/check) exclusively.
 
 # Installation