Render placeholders as bold text in render.py

[vitorhcl]

I think thid could be achieved by replacing "{{" and "}}" by the HTML tags <b> and </b>.

[kbdharun]

I think thid could be achieved by replacing "{{" and "}}" by the HTML tags <b> and </b>.

Thanks for the proposal, while this does sound good on paper, this would be problematic in pages where we need to do placeholder escaping to display double brackets {{ }} along with the rendered placeholder. So we need to carefully proceed with this issue to avoid edge cases like this.