Fix grammar

Author: DeepAnchor

Diff for: en/13.4.md

@@ -1,6 +1,6 @@
-# 13.4 Logs and configurations
+# 13.4 Logging and configuration
 
-## The importance of logs and configuration
+## The importance of logging and configuration
 
 Previously in the book, we saw that event logging plays a very important role in application development. With adequate logging, we can record crucial information that can later be dissected for debugging and optimization purposes. In the section where we looked at the seelog logging utility, we saw that it had settings for various log level gradations, which can be essential for program development and deployment; we can set the logging level lower in a development environment, while setting it high in production so that we can mask extraneous information when we are trying to debug our application.