Fixed package metadata (#9)

Author: ssbarnea

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = rmux
-description = remux allows you to run your local project on multiple remote machines in parallel
+description = rmux allows you to run your local project on multiple remote machines in parallel
 long_description = file: README.md
 long_description_content_type = text/markdown; charset=UTF-8; variant=GFM
 author = Sorin Sbarnea
@@ -14,8 +14,6 @@ classifiers =
     Operating System :: POSIX :: Linux
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10