Docs: minor improvements

doc/org.texi

@@ -4238,6 +4238,7 @@ ALLTAGS      @r{All tags, including inherited ones.}
 PRIORITY     @r{The priority of the entry, a string with a single letter.}
 DEADLINE     @r{The deadline time string, without the angular brackets.}
 SCHEDULED    @r{The scheduling time stamp, without the angular brackets.}
+CLOSED       @r{When was this entry closed?}
 TIMESTAMP    @r{The first keyword-less time stamp in the entry.}
 TIMESTAMP_IA @r{The first inactive time stamp in the entry.}
 CLOCKSUM     @r{The sum of CLOCK intervals in the subtree.  @code{org-clock-sum}}

lisp/org.el

@@ -2653,6 +2653,7 @@ Text starting and ending with a special character will be emphasized, for
 example *bold*, _underlined_ and /italic/.  This variable sets the marker
 characters, the face to be used by font-lock for highlighting in Org-mode
 Emacs buffers, and the HTML tags to be used for this.
+For LaTeX export, see the variable `org-export-latex-emphasis-alist'.
 Use customize to modify this, or restart Emacs after changing it."
   :group 'org-font-lock
   :set 'org-set-emph-re