Fix: fenced code script
Fix: fenced code script

Fixes cases when there is a content before or after fenced code without
empty line.

Also removes `<p>...</p>` element around `<pre>...</pre>` as it was invalid

zendframework/zf-mkdoc-theme,zendframework/zf-mkdoc-theme,zendframework/zf-mkdoc-theme,zendframework/zf-mkdoc-theme,zendframework/zf-mkdoc-theme