Update README.md

This dataset contains more than 6000 rows of comments along with the sentiment(POS,NEG,NEU).
Comments are extracted from subreddit Canada posts and cleaned, converted emojis, and then annotated using the model:
finiteautomata/bertweet-base-sentiment-analysis.
https://huggingface.co/finiteautomata/bertweet-base-sentiment-analysis

README.md

@@ -1,3 +1,10 @@
 ---
 license: unknown
----
+task_categories:
+- text-classification
+language:
+- en
+pretty_name: reddit_comments_sentiment
+size_categories:
+- 1K<n<10K
+---