Correct two minor spelling errors

Author: erijo

core/prelude-core.el

@@ -68,7 +68,7 @@ PROMPT sets the `read-string prompt."
     (if _after (ov-reset _ov))))
 
 (defun prelude-annotate-todo ()
-  "Put fringe marker on TODO: lines in the curent buffer."
+  "Put fringe marker on TODO: lines in the current buffer."
   (interactive)
   (ov-set (format "[[:space:]]*%s+[[:space:]]*TODO:" comment-start)
           'before-string

core/prelude-global-keybindings.el

@@ -75,7 +75,7 @@
 
 (define-key 'help-command (kbd "C-i") 'info-display-manual)
 
-;; replace zap-to-char functionaity with the more powerful zop-to-char
+;; replace zap-to-char functionality with the more powerful zop-to-char
 (global-set-key (kbd "M-z") 'zop-up-to-char)
 (global-set-key (kbd "M-Z") 'zop-to-char)