tests that can be used to improve user navigation in a multi-lingual
wiki:
-* "`lang(LL)`" - Tests whether a page is written in the language
+* "`lang(LL)`" - tests whether a page is written in the language
specified as a ISO639-1 (two-letter) language code.
-* "`currentlang()`" - Tests whether a page is written in the same
+* "`currentlang()`" - tests whether a page is written in the same
language as the current page.
-Note: every non-po page is considered to be written in
+Note that every non-po page is considered to be written in
`po_master_language`, as specified in `ikiwiki.setup`.