Ill-formed documents:

- 132 instances of unescaped "&" in text-elements (fixed)
- doc "investor.bg - 2020-01-04.xml" contains ill-formed line "<p><div</p>" (line 168)
- doc "svobodnaevropa.bg - 2020-01-04.xml" lacks author name for second text
- doc "webcafe.bg - 2020-01-10.xml" lacks at least one author name
- in all of the 10 docs from dnevnik.bg, there is a string of the following form: 
[class*="general-article"] .article-content > p:first-of-type::first-letter { float: none; font-size: 17px; line-height: 1.42em; padding: 0; } 
it can be found by the command grep -e "\[.*\}" *.xml