update source and limitations

README.md

@@ -138,7 +138,7 @@ Supported languages:
 
 ### Original Source?
 Around 11 months ago, I downloaded and preprocessed 2.7M rows of text data, but completely forgot the original source of these datasets...
-All I know is that I looked everywhere: HuggingFace, research papers, GitHub, Kaggle, and Google search. I even fetched 20K+ tweets using the Twitter API.
+All I remember is that I downloaded datasets from everywhere I could: HuggingFace, research papers, GitHub, Kaggle, SurgeAI, and Google search. I even fetched 20K+ tweets using the Twitter API.
 Today (6/28/2023) I came across two newer HuggingFace datasets, so I remembered to credit them below.
 
 Known datasets:
@@ -147,4 +147,9 @@ Known datasets:
 
 <br>
 
+### Limitations
+Some limitations include:
+- All labels were rounded to the nearest integer. If a text was classified as 46%-54% toxic, the text itself might not be noticeably toxic or neutral.
+- There were disagreements among moderators on some labels, due to ambiguity and lack of context.
+
 Have fun modelling!