Merge pull request #32 from TonicAI/f/missed-audio-docs

Missed audio documentation

Author: akamor

docs/source/redact/redacting_audio.rst

@@ -0,0 +1,20 @@
+Redact audio files
+------------------
+Textual supports transcribing audio files and then applying a redaction/synthesis on the transcribed text.  This can be accomplished with our `redact_audio` method:
+To redact sensitive information from a text string, pass the string to the `redact` method:
+
+.. code-block:: python
+
+    from tonic_textual.redact_api import TextualNer
+
+    textual = TextualNer()
+
+    transcription_redaction = textual.redact_audio("<Path to audio file>")
+    print(raw_redaction.describe())
+
+This produces an output identical to our `redact` method.
+
+
+Additional Remarks
+------------------
+