lesson 10 update

Author: NikLever

start/lesson10/index.html

@@ -30,7 +30,7 @@
           let course = "JavaScript in 12 easy lessons";
           const lesson = 10;
           console.log(`course='${course}' inside if statement`);  
-          console.log(`lesson=${section} inside if statement`);  
+          console.log(`lesson=${lesson} inside if statement`);  
         }
       }