Dataset card update checkpoint

I've just filled in a bit of the information that was known to me at the moment. More PRs to come most likely. Thank you for putting this together.

README.md

@@ -199,7 +199,7 @@ The dataset contains a single split, which is `train`.
 
 ### Curation Rationale
 
-[More Information Needed]
+Prompts were selected based on community assessment through the [Prompt Collective initiative](https://huggingface.co/spaces/DIBT/prompt-collective-dashboard).
 
 ### Source Data
 
@@ -219,15 +219,15 @@ This is a translation dataset that contains texts. Please translate the text in
 
 #### Annotation process
 
-[More Information Needed]
+Translators were both native and non-native Russian language speakers who used their own language and cultural knowledge to provide the best Russian-language versions of the provided prompts. Sometimes this meant replacing certain geographical or cultural references with those that would be more familiar to a Russian-speaking audience, sometimes this mean leaving Latin-alphabet words with no Russian-language equivalent "as is", sometimes this meant transliterating English-language words. Annotators were asked to use their best judgement whilst translating.
 
 #### Who are the annotators?
 
-[More Information Needed]
+A list of contributing annotators is available on the DIBT-Russian [MPEP Dashboard](https://huggingface.co/spaces/DIBT-Russian/MPEP_Dashboard)
 
 ### Personal and Sensitive Information
 
-[More Information Needed]
+No personal or sensitive information was included in any of the source or translated prompts.
 
 ## Considerations for Using the Data