Make bs4 only replace the tag name instead of name and contents

[AgathaSorceress]

The database's content column is currently empty because the whole toot is usually wrapped with <p> and

for p in soup.select("p"):
    p.replace_with("\n")

replaces both the contents of the paragraph and the tag name. This change should fix this problem and prevent ./gen.py from crashing because of empty contents uwu