Update documentation re ADM-related features

* Fix some typos
* Re-word for clarity
* Update to match latest functionality
* ❓ is used in some areas requiring confirmation

README.md

@@ -64,7 +64,7 @@ including the following:
     * [IMF JPEG 2000 Track Files](./docs/imf_jpeg_2000_track_files.md)
     * [IMF Audio Track Files](./docs/imf_audio_track_files.md)
     * [IMF ProRes Image Track Files](./docs/imf_prores_track_files.md)
-* [Audio Definition Model](./docs/audio_definition_model.md)
+* [(Beta) Audio Definition Model (ADM) & metadata RIFF chunks](./docs/audio_definition_model.md)
 
 ## Build, Test and Install
 

apps/raw2bmx/raw2bmx.cpp

@@ -720,7 +720,7 @@ static void usage(const char *cmd)
     printf("  --wave-chunks <ids>                List of non-builtin WAVE chunk IDs to transfer across from the input\n");
     printf("                                     The <ids> is a comma separated list of chunk IDs. Spaces are automatically appended to IDs if they are less than 4 letters\n");
     printf("                                     The built-in WAVE chunk IDs are: %s\n", WaveReader::GetBuiltinChunkListString().c_str());
-    printf("  --adm-wave-chunk <id>[,<label>]*   Identifies a npn-builtin ADM WAVE chunk to transfer across from the input\n");
+    printf("  --adm-wave-chunk <id>[,<label>]*   Identifies a non-builtin ADM WAVE chunk to transfer across from the input\n");
     printf("                                     ADM Soundfield Groups can be reference this chunk\n");
     printf("                                     A comma separated list of profile and level labels can be provided as well. A <label> can be:\n");
     printf("                                       * a SMPTE UL, formatted as a 'urn:smpte:ul:...',\n");