Remove Python 3 update note

Author: a-paxton

README.md

@@ -1,7 +1,3 @@
-NOTE: Be aware that the PYTHON 3 version of the ALIGN package has not yet been uploaded to PyPI for pip installation. If you want to use the PYTHON 3 version, you can directly use the `prepare_transcripts_private.ipynb` and `calculate_alignment_private.ipynb` code in the "align" folder on this `python3-update-branch`. However, the ALIGN package and all accompanying tutorials on the master branch are tested and work for PYTHON 2.7.
-
-We will update `python3-update-branch` soon with new information once the PYTHON 3 version is tested and ready.
-
 # ALIGN, a computational tool for multi-level language analysis
 
 `align` is a Python library for extracting quantitative, reproducible