Update changelog

Author: madlohe

Changelog

@@ -11,6 +11,7 @@ FIXES
 * Fixed build process when using GCC 10 (#721) (Michael Orlitzky)
 * Fixed postauth vulnerabilities in histogram.js, map.js, trends.js (CVE-2020-1408) (Thanks UraSec Team) (Sebastian Wolf)
 * When using systemd, configuration will be verified before reloading (#715) (tatref)
+* Fixed HARD OK states triggering on the maximum check attempt (#757) (Sebastian Wolf)
 
 4.4.5 - 2019-08-20
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