Polish doc formatting

Author: Phillip Webb

spring-boot-docs/src/main/asciidoc/howto.adoc

@@ -857,25 +857,26 @@ then you can do that in `application.properties` using the "logging.level" prefi
 
 [source,properties,indent=0,subs="verbatim,quotes,attributes"]
 ----
-logging.level.org.springframework.web: DEBUG
-logging.level.org.hibernate: ERROR
+	logging.level.org.springframework.web: DEBUG
+	logging.level.org.hibernate: ERROR
 ----
 
 You can also set the location of a file to log to (in addition to the console) using
-"logging.file". 
+"logging.file".
+
+To configure the more fine grained settings of a logging system you need to use the native
+configuration format supported by the `LoggingSystem` in question. By default Spring Boot
+picks up the native configuration from its default location for the system (e.g.
+`classpath:/logback.xml` for Logback), but you can set the location of the config file
+using the "logging.config" property.
 
-To configure the more fine grained settings of a logging system you need to use the native configuration
-format supported by the `LoggingSystem` in question. By default Spring Boot picks up the native
-configuration from its default location for the system (e.g. `classpath:/logback.xml` for Logback), but
-you can set the location of the config file using the "logging.config" property.
 
 
 [[howto-configure-logback-for-loggin]]
 === Configure Logback for logging
-If you put a `logback.xml` in the root of your classpath it will be
-picked up from there. Spring Boot provides a default base
-configuration that you can include if you just want to set levels,
-e.g.
+If you put a `logback.xml` in the root of your classpath it will be picked up from there.
+Spring Boot provides a default base configuration that you can include if you just want
+to set levels, e.g.
 
 [source,xml,indent=0,subs="verbatim,quotes,attributes"]
 ----

spring-boot-docs/src/main/asciidoc/spring-boot-features.adoc

@@ -727,27 +727,29 @@ As with console output, `ERROR`, `WARN` and `INFO` level messages are logged by
 [[boot-features-custom-log-levels]]
 === Log Levels
 
-All the supported logging systems can have the logger levels set in the Spring `Environment`
-(so for example in `application.properties`) using "logging.level.*=LEVEL" where "LEVEL" is one of 
-TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF. Example `application.properties`:
+All the supported logging systems can have the logger levels set in the Spring
+`Environment` (so for example in `application.properties`) using ``logging.level.*=LEVEL''
+where ``LEVEL'' is one of TRACE, DEBUG, INFO, WARN, ERROR, FATAL, OFF. Example
+`application.properties`:
 
 [source,properties,indent=0,subs="verbatim,quotes,attributes"]
 ----
-logging.level.org.springframework.web: DEBUG
-logging.level.org.hibernate: ERROR
+	logging.level.org.springframework.web: DEBUG
+	logging.level.org.hibernate: ERROR
 ----
 
 
+
 [[boot-features-custom-log-configuration]]
 === Custom log configuration
 
 The various logging systems can be activated by including the appropriate libraries on
 the classpath, and further customized by providing a suitable configuration file in the
 root of the classpath, or in a location specified by the Spring `Environment` property
-`logging.config`. (Note however that since logging is initialized *before* the `ApplicationContext
-is created, it isn't possible to control logging from `@PropertySources` in Spring
-`@Configuration` files.  System properties and the conventional Spring Boot external
-configuration files work just fine.)
+`logging.config`. (Note however that since logging is initialized *before* the
+`ApplicationContext` is created, it isn't possible to control logging from
+`@PropertySources` in Spring `@Configuration` files.  System properties and the
+conventional Spring Boot external configuration files work just fine.)
 
 Depending on your logging system, the following files will be loaded: