Update README.md

Author: montyvesselinov

README.md

@@ -3,7 +3,7 @@ DocumentFunction
 
 A module for documenting Julia functions.
 
-It also provides methods to document function methods, arguments and keywords.
+It provides methods to document function methods, arguments, and keywords.
 
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@@ -83,9 +83,9 @@ $(DocumentFunction.documentfunction(foobar;
 """ foobar
 ```
 
-To get the help for this new function type `?foobar`.
+To get help for this new function, type `?foobar`.
 
-This will produces the following output:
+This will produce the following output:
 
 ```
   foobar