automamba: update readme

automamba/README.md

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+only works on Windows right now.
+
+### examples
+
+* `automamba --create` 
+  create a new environment. do this once in a while to keep your packages up to date.
+* `automamba hello.py` 
+  invoke python to execute a local python file.
+  a new environment will be created if none have been made.
+* `automamba --pip install scipybiteopt==1.2` 
+  invoke pip to build and install a package. MSVC will be installed if it isn't already,
+  since this example requires a C++ compiler.
+* `automamba --mamba repoquery depends pip` 
+  invoke mamba to look up dependencies.
+* `automamba --wheel` 
+  execute `./setup.py` with `bdist_wheel` as an argument.
+  this configures environment variables similarly to the `--pip` command.
+  (this command will probably be removed in the near future)