[O] Correct comments according to suggestions

README.md

@@ -2,7 +2,7 @@
 
 ### Setup environment
 
-1. Install Java `dnf install java-11-openjdk-devel` (And add an alias to your `.bashrc`)
+1. Install Java 11 JDK (And add an alias to your `.bashrc`)
 
 ```shell
 alias java11='/usr/lib/jvm/jre-11/bin/java'

build.gradle

@@ -75,6 +75,7 @@ compileTestKotlin {
     }
 }
 
+// Remove version number from jar name for deployment
 bootJar {
     archiveFileName = "${archiveBaseName.get()}.${archiveExtension.get()}"
 }

src/main/java/org/hydev/clock_api/controller/UserController.java

@@ -71,6 +71,7 @@ public class UserController {
 
     /**
      * Create salted hash for user's password
+     * Format: "$username + $password".toLowerMd5();
      *
      * @param username Unique username used as a salt
      * @param password Password initial hash