data_index link

fixing link to data_index from data_metadata

data/readme.md

@@ -2,7 +2,7 @@
 
 Store all of your research data in subdirectories here. It is recommended that raw data not be altered once downloaded or collected. Maintaining a separate raw data file facilitates reproducibility be preserving a common point of analytical origin. It is similarly recommended that whenever possible data processing, transformation, or manipulation be completed with code as this practice facilitates re-analysis and reduces opportunities of confusion.
 
-Complete the [data_metadata.csv](data_metadata.csv) file indexing each **raw** and **derived** data file, including the fields:
+Complete the [data_index.csv](data_index.csv) file indexing each **raw** and **derived** data file, including the fields:
 
 - `path`: the path to the data folder, likely one of: `raw\private`, `raw\public`, `derived\private` or `derived\public`
 - `name`: the file name, including extension