chore: Cleanup docs and add model for CI/CD

.gitignore

@@ -11,6 +11,7 @@ htmlcov/
 *.db
 *.sqlite
 *.pkl
+!02_xgb_model_tuned.pkl
 *.csv
 # Keep the specific model and data files if they are part of the repo, but usually data is ignored. 
 # User context implies they are provided files, so maybe we keep them or ignore them. 
@@ -18,3 +19,7 @@ htmlcov/
 # Let's ignore the generated schemas text files
 generated_schemas.txt
 generated_schemas_v2.txt
+
+# Ignore all markdown files except README.md
+*.md
+!README.md

02_xgb_model_tuned.pkl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:aff34586c2fa58bd032708cb2262f7b2fa12380b11919c34e0c0cf486411a601
+size 527691