Update WorkingWithFiles.md

Author: rsokl

Python/Module5_OddsAndEnds/WorkingWithFiles.md

@@ -135,9 +135,9 @@ The following code opens the file "file1.txt" for writing:
 path_to_file = Path("file1.txt")
 with open(path_to_file, mode="w") as f:
  # The indented space enters the "context" of the open file.
- # Leaving the indented space exist the context of the opened file, forcing
- # the file to be closed. This is ensured even if our code causes an error
- # within this indented block
+ # Leaving the indented space exits the context of the opened file, forcing
+ # the file to be closed. This is ensured even if the code within the indented 
+ # block causes an error.
  f.write('this is a line.\nThis is a second line.\nThis is the third line.')
 
 # The file is closed here.