update: version 0.4.0

Author: ttngu207

docs/src/concepts.md

@@ -68,7 +68,7 @@ existing spike sorting methods, named
 by Alessio Buccino, et al. SpikeInterface provides a convenient Python-based wrapper to
 invoke, extract, compare spike sorting results from different sorting algorithms. 
 SpikeInterface is the primary tool supported by Element Array Electrophysiology for 
-spike sorting as of version `1.0.0`.
+spike sorting as of version `0.4.0`.
 
 ## Key Partnerships
 

docs/src/index.md

@@ -13,7 +13,7 @@ The Element is comprised of `probe` and `ephys` schemas. Visit the
 `ephys` schemas and an explanation of the tables. To get started with building your own
 data pipeline, visit the [Tutorials page](./tutorials/index.md).
 
-Prior to version `1.0.0` , several `ephys` schemas were
+Prior to version `0.4.0` , several `ephys` schemas were
 developed and supported to handle various use cases of this pipeline and workflow. These
  are now deprecated but still available on their own branch within the repository: