Update README.md

Added pre-processing steps

README.md

@@ -18,6 +18,19 @@ Annika Simonsen, Sandra Saxov Lamhauge, Iben Nyholm Debess, and Peter Juel Henri
 ### Dataset Summary
 
 This dataset is a filtered version of the corpus (35.6 M tokens) first published as BLARK - Basic Language Resource Kit for Faroese. 
+The pre-processing and filtering steps include:
+
+- Normalize format to utf-8
+- Remove shorter sentences (less than 10 units, where units are separated by spaces)
+- Remove ancient Faroese
+- Remove separators ('\r', '\t', '\n')
+- Remove non standard formatting. Examples: '§§', ' | ', '**', ' • ', '  •  ', '.- ', ': ?', '.?', '\xa0', '\xad', '_ _', '. .', etc.
+- Remove (most) numbered lists, of formats: 1), 1:, Stk. 1 etc.
+- Replace arbitrary number of question/exclamation marks and full-stops with 1. Example: !!!!!! -> !
+- Remove websites that start with http
+- Remove sentences without (or with little) linguistic content. In practice: all sentences where more than half of the characters (excluding spaces) are number, punctuations and letters in caps-lock (acronyms and initials)
+- Remove duplicates
+- Set everything lower case
 
 ### Supported Tasks and Leaderboards