update Section 1.2 adding <code></code> tag html markup in addition to md backticks

[MartinKoob]

Section 1.2 only mentions Back Ticks (`) as a way of marking up terms to be rendered as code.

Style Conventions
This document uses the following style conventions:

Back Ticks ( ` ) – (rendered as "inline code depending on document rendering”) for all literal names of verbs and properties.

Within the document there are html formatted blocks within which any you have to use tags to get the same rendering.

[MrBillMcDonald]

Per May 5th meeting add:

Inline code - All literal names of verbs and properties will be rendered as “inline code” (using markdown back ticks (` ) or <code> tags within HTML blocks)`

[MrBillMcDonald]

closed per 6/30 meeting