Update README for fix typo

Author: sinamajidian

README.md

@@ -5,7 +5,7 @@ read2tree is a software tool that allows to obtain alignment matrices for tree i
 read2tree works in linux with  [![Python 3.10.8](https://img.shields.io/badge/python-3.10.8-blue.svg)](https://www.python.org/downloads/release/python-310/)
 
 ## New release 
-We are now realasing Read2Tree v2.0.0 with improved spead and logging. As the aligner, we are now using minimap2 [minimap2](https://github.com/lh3/minimap2). Also, MAFFT and IQtree are now using multiple threads. We would suggest to run r2t with `--debug` which helps to debug later. Please note that arguments have slightly changed in this release(see below for details). 
+We are now realasing Read2Tree v2.0.0 with improved speed and logging. As the aligner, we are now using minimap2 [minimap2](https://github.com/lh3/minimap2). Also, MAFFT and IQtree are now using multiple threads. We would suggest to run r2t with `--debug` which helps to debug later. Please note that arguments have slightly changed in this release(see below for details). 
 
 
 ## Read2Tree Talk: