update setup

setup.py

@@ -7,7 +7,7 @@ with open(path.join(path.abspath(path.dirname(__file__)), 'README.md'), encoding
   long_description = f.read()
 
 setup(
-  name="mechanics",
+  name="engineering",
   version="2020.10.21",
   description="mechanical tools",
   long_description=long_description,
@@ -22,9 +22,9 @@ setup(
   ],
   entry_points={
     'console_scripts': [
-      'beam=beam:main',
-      'plate=plate:main',
-      'tube=tube:main',
+      'eng-beam=beam:main',
+      'eng-plate=plate:main',
+      'eng-tube=tube:main',
     ],
   },
   keywords = 'mechanics plate tube stress',