Initial documentation for ReSpec conformance clause handling

.conformance {
    background-color: #E9FFBE;
 }

.conformance-label {
    text-transform:     lowercase;
    font-variant:       small-caps;
    font-style:         normal;
    color:              #00B900;
 }

 table.conformance-table {
	border: 1px solid gray;
	border-collapse: collapse;
	border-spacing: 0px;
	padding-left: 0.5em;
	padding-right: 1em;
	padding-top: 3px;
	padding-bottom: 0px;
	vertical-align: top;
}

table.conformance-table td {
	border: 1px solid gray;
	border-collapse: collapse;
	border-spacing: 0px;
	padding-left: 0.5em;
	padding-right: 2em;
	padding-top: 3px;
	padding-bottom: 0px;
	vertical-align: top;
}

table.conformance-table th {
	border: 1px solid gray;
	border-collapse: collapse;
	border-spacing: 0px;
	padding-left: 0.5em;
	padding-right: 2em;
	padding-top: 4px;
	padding-bottom: 2px;
	vertical-align: middle;
	text-align: left;
	font-weight: bold;
}