Ignore all of data/ in pre-commit CI (#43)

We should probably exclude all of `data/` from the pre-commit CI. I've
done that here.

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: Andrew-S-Rosen

.pre-commit-config.yaml

@@ -15,11 +15,10 @@ repos:
     rev: v6.0.0
     hooks:
       - id: end-of-file-fixer
-        exclude: 'data/MP/chgcars'
-        exclude: (^data/.*\.CHGCAR$)|(^label/.*\.CHGCAR$)
+        exclude: ^data/
+
       - id: trailing-whitespace
-        exclude: 'data/MP/chgcars'
-        exclude: (^data/.*\.CHGCAR$)|(^label/.*\.CHGCAR$)
+        exclude: ^data/
 
   - repo: https://github.com/adamchainz/blacken-docs
     rev: 1.20.0

README.md

@@ -1,4 +1,3 @@
 # ElectrAI
 
 An ongoing collaboration between the Rosen Group and Open Athena.
-