Use placeholder for board name component of "DSpotterSDK_Maker_*" libraries

There is a separate speech recognition library for each of the supported boards. The library name all use the same
"DSpotterSDK_Maker_" prefix, differentiated with a suffix to indicate the target board.

The tutorial contains instructions for opening the library's example sketch. These instructions are intended to be
applicable for use with any of the library variants so it is necessary for the reader to extrapolate the correct library
name. The new approach is to use a placeholder to indicate the board name suffix on the library name.

The common convention of indicating a placeholder via angle brackets was chosen. This causes a visual collision with the
tutorials use of right angle brackets as separators when indicating menu path navigation, as is the standard in Arduino
documentation. In order to avoid this collision, the tutorial is migrated to using the alternative "->" menu path
separator.

Author: per1234

Diff for: content/hardware/04.pro/shields/portenta-vision-shield/tutorials/speech-recognition-engine/content.md

@@ -97,11 +97,11 @@ In case you need more instructions about how to install libraries, read this [gu
 
 To use the Arduino Speech Recognition Engine, you will need a free trial license or paid license. In any of the cases, the serial number of the board that you are using is necessary to activate the license.
 
-To get your board's serial number, and once you have the library downloaded, navigate to **File > Examples > DSpotterSDK_Maker_33BLE/NiclaVision/PortentaH7/RP2040 > GetSerialNumber**.
+To get your board's serial number, and once you have the library downloaded, navigate to **File -> Examples -> DSpotterSDK\_Maker\_<board_name> -> GetSerialNumber**.
 
 Connect your board to the computer, upload the sketch to it and, once is done, open the **Serial Monitor** to see your device's Serial Number.
 
-***On the Arduino IDE 1.6.x or previous versions, you can also find the serial number as follow: select the board's serial port and click on `tools > Get Board Info`, you will see the "SN" number, save it for later.***
+***On the Arduino IDE 1.6.x or previous versions, you can also find the serial number as follow: select the board's serial port and click on `tools -> Get Board Info`, you will see the "SN" number, save it for later.***
 
 #### Get the Demo License
 
@@ -117,7 +117,7 @@ Once everything is ready, click on the **submit** button to get your license, it
 
 ### Test the Free Demo Sketch
 
-* Open the sketch **File > Examples > DSpotterSDK_Maker_33BLE/NiclaVision/PortentaH7/RP2040 > VoiceRecognition**
+* Open the sketch **File -> Examples -> DSpotterSDK\_Maker\_<board_name> -> VoiceRecognition**
 * Navigate to the `CybLicense.h` tab.
 * Paste your license between the brackets, like in the following example:
   ```cpp
@@ -193,7 +193,7 @@ Once everything is checked, click **Confirm** and you will get the model header
 
 You will now get some files in your e-mail inbox. Download them to your computer.
 
-On the IDE, open the example **File > Examples > DSpotterSDK_Maker_33BLE/NiclaVision/PortentaH7/RP2040 > VoiceRecognition** and click **File > Save As...** and type a name for your sketch.
+On the IDE, open the example **File -> Examples -> DSpotterSDK\_Maker\_<board_name> -> VoiceRecognition** and click **File -> Save As...** and type a name for your sketch.
 
 Once it is saved, open your File Explorer, and navigate to your sketch path.