}
to apps.css.
If you add a new class with semantic meaning, document it below, under
-"Custom classes".
+"Custom classes", and be sure to explain it to the reader at
+_manual/01_welcome-to-ardour/02_about-ardour-documentation.html.
2. Format and Validation
On each page, use only for the first occurrence of every abbreviation. Avoid
a redundant explanation in the text - the expansion can easily be extracted
via CSS for printing.
+Use only in the text body, not in headings.
<em>
is used to emphasize a word. Commonly rendered as italics.
element.
-5. Typography
-=============
+5. Other conventions
+====================
+
+
+5.1 Typography
+--------------
* Avoid any typographical quotation marks to highlight terms or express any
kind of subtle inflection, use semantic markup instead.
the long em-dash.
* For ranges of values, use the en-dash: Monday – Friday, 0 –
11.
+* Use a non-breaking space (" ") between a number and its unit.
+
+
+5.2 Language
+------------
+
+* The Ardour manual is written in Americal English spelling.
+* Use SI units with standard abbreviations. Give imperial units only as
+ additional information, if at all.
+
+
+5.3 Headline Capitalization
+---------------------------
+
+Capitalization follows
+https://developer.gnome.org/hig-book/3.6/design-text-labels.html.en#layout-capitalization
+:
+* Capitalize all words in the headline, with the following exceptions:
+ Articles: a, an, the.
+ Conjunctions: and, but, for, not, so, yet ...
+ Prepositions of three or fewer letters: at, for, by, in, to ...
+* Keep headlines short and concise.