Fix application.properties on hibernate-search sample

spring-boot-hibernate-search/src/main/resources/application.properties

@@ -3,31 +3,30 @@
 # ===============================
 
 # Set here configurations for the database connection
+
+# Connection url for the database "netgloo_blog"
 spring.datasource.url = jdbc:mysql://localhost:3306/netgloo_blog?useSSL=false
+
+# Username and password
 spring.datasource.username = root
 spring.datasource.password = root
 
-# Mysql connector
-spring.datasource.driverClassName = com.mysql.jdbc.Driver
-
-
 # ===============================
 # = JPA / HIBERNATE
 # ===============================
 
-# Specify the DBMS
-spring.jpa.database = MYSQL
-
 # Show or not log for each sql query
 spring.jpa.show-sql = true
 
 # Ddl auto must be set to "create" to ensure that Hibernate will run the
 # import.sql file at application startup
 spring.jpa.hibernate.ddl-auto = create
 
-# SQL dialect for genereting optimized queries
-spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
+# Naming strategy
+spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy
 
+# Allows Hibernate to generate SQL optimized for a particular DBMS
+spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
 
 # ===============================
 # = HIBERNATE SEARCH
@@ -45,7 +44,6 @@ spring.jpa.properties.hibernate.search.default.directory_provider = filesystem
 # permissions on such directory)
 spring.jpa.properties.hibernate.search.default.indexBase = /var/netgloo_blog/lucene/indexes/
 
-
 # ===============================
 # = THYMELEAF
 # ===============================