Migrate BBCode to Markdown in asset posts

Since the migration from SMF to Discourse forum platforms, Markdown is the primary markup language for Arduino Forum.

The project infrastructure provides high quality validation of Markdown. The alternative markup language BBCode should
be used only in the rare cases where equivalent capability is not provided by Markdown (which includes an HTML subset).

Author: per1234

content/categories/templates/_topics/moved-to-italian-section/1.md

@@ -1,2 +1,2 @@
 :warning:
-Ti segnalo che, [u]nella sezione in lingua [b]Inglese[/b][/u], si può scrivere [b]SOLO[/b] in [b]Inglese[/b] ... quindi, per favore, la prossima volta [b]presta più attenzione[/b] in quale sezione metti i tuoi post;  questa volta esso è stato spostato, da un moderatore della sezione di lingua Inglese, nella [sezione di lingua Italiana](https://forum.arduino.cc/c/international/italiano/50) ... la prossima volta potrebbe venire direttamente eliminato. Grazie.
+Ti segnalo che, [u]nella sezione in lingua **Inglese**[/u], si può scrivere **SOLO** in **Inglese** ... quindi, per favore, la prossima volta **presta più attenzione** in quale sezione metti i tuoi post;  questa volta esso è stato spostato, da un moderatore della sezione di lingua Inglese, nella [sezione di lingua Italiana](https://forum.arduino.cc/c/international/italiano/50) ... la prossima volta potrebbe venire direttamente eliminato. Grazie.

content/categories/templates/_topics/moved-to-spanish-section/1.md

@@ -3,4 +3,4 @@ Código corregido
 
 Tu publicación fue ** MOVIDA ** a su ubicación actual ya que es más adecuada.
 
-¿Podría también tomarse unos minutos para [url=https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966] Aprenda a usar el foro [/url].
+¿Podría también tomarse unos minutos para [Aprenda a usar el foro](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966).

content/categories/templates/_topics/moved/1.md

@@ -1,6 +1,6 @@
 Your topic was moved to its current location as it is more suitable.
 
-Could you also take a few moments to [url=https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966]Learn How To Use The Forum[/url].
+Could you also take a few moments to [Learn How To Use The Forum](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966).
 
 It will help you get the best out of the forum in the future.
 

content/categories/using-arduino/introductory-tutorials/_topics/about-the-introductory-tutorials-category/1.md

@@ -1,2 +1,2 @@
 Tutorials for new people on the forum.
-[b][color=#FF0000]Do not post your question in this forum section[/color][/b]
+**[color=#FF0000]Do not post your question in this forum section[/color]**

content/categories/using-arduino/introductory-tutorials/_topics/do-not-post-questions-in-this-part-of-the-forum/1.md

@@ -1,2 +1,2 @@
-[b][color=#FF0000]--- Please do not post your question in this part of the forum, it is for introductory tutorials, not for questions.
-Thank you. ---[/color][/b]
+**[color=#FF0000]--- Please do not post your question in this part of the forum, it is for introductory tutorials, not for questions.
+Thank you. ---[/color]**