docs(flagger): correct grammar

subjects/flagger/README.md

@@ -2,14 +2,13 @@
 
 ### Instructions
 
-Create a function called `flags` that receives an object and returns
-the specific aliases and descriptions from the properties of that object.
+Create a function named `flags` that receives an object and returns the specific aliases and descriptions from the properties of that object.
 
 The `help` flag:
 
-- Should be present in the output by default.
+- Must be present in the **output** by default.
 - When not present in the input, it should return the description of all flags.
-  But when present it specifies the descriptions of the flags that are passed to help. (ex: `help: ['divide']`)
+- When present in the input, it specifies the descriptions of the flags that are passed to `help`. (ex: `help: ['divide']`)
 
 #### Example: