Update setup.py2

Author: khoroshevskyi

setup.py

@@ -43,7 +43,7 @@ def read_reqs(reqs_name):
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
-        "Topic :: Scientific/Engineering ::  Bio-Informatics",
+        "Topic :: Scientific/Engineering :: Bio-Informatics",
     ],
     keywords="project, bioinformatics, metadata",
     url=f"https://github.com/databio/{PACKAGE}/",