Corrected *Healthy* typo

Author: g-nardiello

README.md

@@ -17,7 +17,7 @@ docker container run -d \
 
 
 Healthcheck is provided as a basic init control.
-Container is **Healthly** after the database init phase, that is after `INIT_BACKUP` or `INIT_RESTORE_LATEST` happends without check if there is an error, **Starting** otherwise. Not other checks are actually provided.
+Container is **Healthy** after the database init phase, that is after `INIT_BACKUP` or `INIT_RESTORE_LATEST` happends without check if there is an error, **Starting** otherwise. Not other checks are actually provided.
 
 ## Variables