update release script

new_release.py

@@ -2,6 +2,12 @@
 import re 
 from subprocess import Popen
 
+with open('pyproject.toml', 'r') as f: 
+    data = f.read()
+result = re.search("\nversion = \"(.*)\"", data)
+old_version = result.group(1)
+print(f'current version: {old_version}')
+
 Popen(
     f'bumpversion patch --allow-dirty'.split(' '), 
 ).wait()
@@ -17,4 +23,4 @@
     f'git push origin {version}'.split(' '), 
 ).wait()
 
-print('done')
+print(f'done - updated to version {version}')