added the whole design concept, partly schematic for usbc side

kicad/c64psu/lib/REC10K_2415SAW_H2/how-to-import.htm

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+<!DOCTYPE HTML><html lang="en-US"> <head> <meta charset="UTF-8"> <meta http-equiv="refresh" content="0; url=https://www.snapeda.com/about/import/#"> <script type="text/javascript">window.location.href="https://www.snapeda.com/about/import/#" </script> <title>Page Redirection</title> </head> <body> If you are not redirected automatically, follow this <a href="https://www.snapeda.com/about/import/#">link to the import guide</a>. </body></html>