Update README.md

Corrected a few words.

README.md

@@ -1308,7 +1308,7 @@ class Worker implements WorkerInterface {
         // ....working
     }
     public function eat() {
-        // ...... eating in launch break
+        // ...... eating in lunch break
     }
 }
 
@@ -1318,7 +1318,7 @@ class SuperWorker implements WorkerInterface {
     }
 
     public function eat() {
-        //.... eating in launch break
+        //.... eating in lunch break
     }
 }
 
@@ -1355,7 +1355,7 @@ class Worker implements WorkableInterface, FeedableInterface {
     }
 
     public function eat() {
-        //.... eating in launch break
+        //.... eating in lunch break
     }
 }
 
@@ -1371,7 +1371,7 @@ class SuperWorker implements WorkerInterface  {
     }
 
     public function eat() {
-        //.... eating in launch break
+        //.... eating in lunch break
     }
 }
 
@@ -1467,7 +1467,7 @@ class Manager {
 **[⬆ back to top](#table-of-contents)**
 
 ### Use method chaining
-This pattern is very useful and commonly used it many libraries such
+This pattern is very useful and commonly used in many libraries such
 as PHPUnit and Doctrine. It allows your code to be expressive, and less verbose.
 For that reason, I say, use method chaining and take a look at how clean your code
 will be. In your class functions, simply return `this` at the end of every function,