Appending html to PostContent rather than set - #92

Damien Pontifex (@damienpontifex) great pickup! In your test, I'm assuming that things work correct in both cases (where you do and don't have additional content)? As a note, we are looking at switching things so that we inject Glimpse scripts without razor dependency (see #77).

From my testing (adding local glimpse into src of my global.json file and testing on my project), Glimpse is still injected into PostContent for both cases: when it is the only one there and also when I'm injecting further additional content.

#77 looks like it might be a little way off, so I'd love to see this integrated into the current implementation so it doesn't effect users currently utilising the Razor/TagHelper approach.

This looks like a no brainer to me. Thanks for finding and fixing the bug Damien Pontifex (@damienpontifex)!

Thanks!