add gitignore

.gitignore

 model/
 *.ipynb_checkpoints/
+.idea
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

.idea/workspace.xml

@@ -2,10 +2,7 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="f877ac68-9cea-46d8-9125-207eebe5b5d6" name="Default Changelist" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/CPI.iml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/CPI.iml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/utils/normalize_data.py" beforeDir="false" afterPath="$PROJECT_DIR$/utils/normalize_data.py" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.gitignore" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />