More configurable post excerpt

[mikasjp]

The user should be able to:

• specify whether the excerpt should end with the Read more link and its label,
• configure excerpts length

[samarsault]

You can use jekyll's excerpt_separator property to do this.
https://jekyllrb.com/docs/posts/#post-excerpts

[DotIN13]

For read more links you can check out my answer at #56

For exerpt length, alternative to excerpt_separator, you could define universal length with liquid tag truncate.

For example in _layout/home.html: 52, edit as follows

{{ post.excerpt | truncate: 50 }}

Then you will get all exerpts truncated to 50 characters, though it may not work well with English as you may get words cut in half at the end of the excerpt.