feat(datasheet): use mustache for project_preview

docs/project_preview.md

@@ -1,20 +0,0 @@
-# {title}
-
-* Author: {author}
-* Description: {description}
-* Language: {language}
-
-{info}
-
-## Pinout
-
-| # | Input        | Output       | Bidirectional      |
-|---|--------------|--------------|--------------------|
-| 0 | {ui[0]}      | {uo[0]}      | {uio[0]}           |
-| 1 | {ui[1]}      | {uo[1]}      | {uio[1]}           |
-| 2 | {ui[2]}      | {uo[2]}      | {uio[2]}           |
-| 3 | {ui[3]}      | {uo[3]}      | {uio[3]}           |
-| 4 | {ui[4]}      | {uo[4]}      | {uio[4]}           |
-| 5 | {ui[5]}      | {uo[5]}      | {uio[5]}           |
-| 6 | {ui[6]}      | {uo[6]}      | {uio[6]}           |
-| 7 | {ui[7]}      | {uo[7]}      | {uio[7]}           |

docs/project_preview.md.mustache

@@ -0,0 +1,15 @@
+# {{title}}
+
+* Author: {{author}}
+* Description: {{&description}}
+* Language: {{language}}
+
+{{&info}}
+
+## Pinout
+
+| #             | Input    | Output   | Bidirectional  |
+|---------------|----------|----------|----------------|
+{{#pins}}
+| {{pin_index}} | {{&ui}}  | {{&uo}}  | {{&uio}}       |
+{{/pins}}