Fix typo in backends/index.rst and racket/support.rkt

docs/source/backends/index.rst

@@ -37,7 +37,7 @@ You can also execute expressions directly:
 
 Again, ``expr`` must have type ``IO ()``.
 
-Finally, you can compile to an exectuable from the command line by adding
+Finally, you can compile to an executable from the command line by adding
 the ``-o <output file>`` option:
 
 ::
@@ -60,4 +60,3 @@ or via the `IDRIS2_CG` environment variable.
    chez
    racket
    gambit
-

support/racket/support.rkt

@@ -153,7 +153,7 @@
     0
     -1))
 
-; See blodown-read-bytevec for what 'dir' is for
+; See blodwen-read-bytevec for what 'dir' is for
 (define (blodwen-write-bytevec dir fname vec max)
    (let ((origdir (current-directory)))
      (begin