Synchronize scrolling between the input textarea and the preview zone

[silviubogan]

To synchronize the scroll position between the #wmd-input and #wmd-preview. I tested the changes rapidly and they seem to work well.

[josephernest]

Nice idea! Can you share a live demo link, so that we can try it? Thanks!

[silviubogan]

https://silviubogan.github.io/writing/

[josephernest]

Interesting, it works most of the time, but not 100% reliable: try with a code containing a half-page comment:

<!-- Hello
     This is a long comment
     This is a long comment
     ...
 -->

or a many-lines matrix:

$$A = \begin{pmatrix}1 \\ 2 \\ 3 \\ 4 \\ 5 \\ 6\end{pmatrix} $$

Then the synchronisation is not always good. The fact we cannot turn it off could make the editing difficult in some cases. I suggest we experiment this a bit, a few weeks to see how it behaves on every day use. After a few weeks of use, we'll be able to tell if it's reliable.