Add changes as requested

Author: uzluisf

doc/Language/exceptions.pod6

@@ -7,7 +7,7 @@
 Exceptions in Perl 6 are objects that hold information about errors. An
 error can be, for example, the unexpected receiving of data or a network
 connection no longer available, or a missing file. The information that
-an exception object store is, for instance, a human-readable message
+an exception object stores is, for instance, a human-readable message
 about the error condition, the backtrace of the raising of the error,
 and so on.
 

doc/Language/io-guide.pod6

@@ -80,7 +80,7 @@ these two routines are for you.
 
 The code above creates a file named C<my-file.txt> in the current directory
 and then writes text C<I ♥ Perl!> into it. If Perl 6 is your first language,
-celebrate your accomplishment! Try to open the file you created with some
+celebrate your accomplishment! Try to open the file you created with a
 text editor to verify what you wrote with your program. If you already know
 some other language, you may be wondering if this guide missed anything like
 handling encoding or error conditions.