no clean subscript in title

[shudras]

Subscript, e.g. H₂O, in title not working.

• in Rmarkdown, I would do H~2~0. That does not work.
• in Markdown, I would do H<sub>2</sub>O. That does not work
• in mathjax that can be loaded as widget, I would use H\(_2\)O. That works but the mathjax font and fontsize writting is much bigger than the normal title font and fontsize

[AniMukherjee]

Hi @shudras, sorry I do not have an answer to your question. but presently I'm stuck with slidify general installation. every time I use slidify('index.Rmd'); I'm getting error Error in markdownExtensions() : could not find function "markdownExtensions". can you please help on this? I'm not getting help anywhere.