updated README and added data

README.md

@@ -2,7 +2,25 @@
 
 Repository for the SeCoDa dataset
 
+Main data are found in SeCoDa.tsv. The file is structured as follows.
 
+First column: token to be disambiguated.
+Second column: offset start for token in context
+Third column: offset end for token in context
+Fourth column: context (sentence in which token occurs)
+Fifth column: selected sense
+Sixth column: comments (also contains MWE information)
+
+Example:
+
+| target  | offset_start | offset_end | context            | sense            | comments |
+| ------- |:------------:| ----------:| ------------------:| ----------------:| --------:|
+| abroad  | 39           | 45         | As we emerge...    | OTHER COUNTRY... | -        |
+| abroad  | 39           | 45         | As we emerge...    | OTHER COUNTRY... | -        |
+| abroad  | 73           | 79         | #1-8 The speech... | OTHER COUNTRY... | -        |
+
+
+The senses are drawn from the [Cambridge Advanced Learner's Dictionary](https://dictionary.cambridge.org).
 
 This work is licensed under a [Creative Commons Attribution-NonCommerial-ShareAlike 4.0
 International License][cc-by-nc-sa].