dmiralty-scale added (description and overview)

admiralty-scale/README.md

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+# Admiralty Scale
+
+The Admiralty Scale (also called the NATO System) is used to rank the reliability of a source and
+the credibility of an information.
+
+## Source Reliability
+
+<dl>
+<dt>A</dt>
+<dd>Completely reliable</dd>
+<dt>B</dt>
+<dd>Usually reliable<dd>
+<dt>C</dt>
+<dd>Fairly reliable </dd>
+<dt>D</dt>
+<dd>Not usually reliable</dd>
+<dt>E</dt>
+<dd>Unreliable</dd>
+<dt>F<dt>
+<dd>Reliability cannot be judged</dd>
+</dl>
+
+## Information Credibility
+
+<dl>
+<dt>1</dt>
+<dd>Confirmed by other sources</dd>
+<dt>2</dt>
+<dd>Probably true</dd>
+<dt>3</dt>
+<dd>Possibly true</dd>
+<dt>4</dt>
+<dd>Doubtful</dd>
+<dt>5</dt>
+<dd>Improbable</dd>
+<dt>6</dt>
+<dd>Truth cannot be judged</dd>
+</dl>
+
+# Machine-parsable Admiralty Scale
+
+The repository contains a JSON file including the machine-parsable tags
+along with their human-readable description. The software can use both
+representation on the user-interface and store the tag as machine-parsable.
+
+~~~~
+admiralty-scale:source-reliability:b
+~~~~
+