add update

Author: SUSYUSTC

mathtranslate/update.py

@@ -0,0 +1,7 @@
+import requests
+
+
+def get_latest_version():
+    response = requests.get('https://pypi.org/pypi/mathtranslate/json')
+    latest_version = response.json()['info']['version']
+    return latest_version