fix minor typo
Minor fix: double spaces
query is a command
pxref already contains "see"
Fixes for consistency
Fixes:
- typo fixes
- @keywords consistency fixes
- add some @kindex and @cindex
- buffer names highlighted as @file{}
- menu item highlighted as @samp{}
M-x delete-trailing-whitespace
Document that buffer names should use @file{} keyword
Indented with Emacs: M-x fill-paragraph
Merge pull request #344 from thdox/fix-doc

Fix doc