typo

Author: Kacper Pluta

README.md

@@ -1,19 +1,19 @@
 Description
 ===========
 BijectiveDigitzedRigidMotions is a set of Mathematica packages for which the main objective is to
-implement algorithms used in the study of bjective digitized rigid motions.  These algorithms were
+implement algorithms used in the study of bjective digitized rigid motions.  The algorithms were
 described/introduced in: [Kacper Pluta , Pascal Romon, Yukiko Kenmochi, Nicolas Passat,Bijective
 Rigid Motions of the 2D Cartesian Grid, DGCI2016, Springer
 2016](http://link.springer.com/chapter/10.1007/978-3-319-32360-2_28) ([free
 preprint](https://hal.archives-ouvertes.fr/hal-01275598v2)); [Kacper Pluta, Pascal Romon, Yukiko
 Kenmochi, Nicolas Passat. Bijectivity certification of 3D digitized rotations, CTIC2016, Springer
 2016](http://link.springer.com/chapter/10.1007%2F978-3-319-39441-1_4) ([free
-print](https://hal.archives-ouvertes.fr/hal-01315226v1)).
+preprint](https://hal.archives-ouvertes.fr/hal-01315226v1)).
 
 Quick Install
 =============
 
-1. Download or clone the repository.
+1. Download or clone the repository
 2. [Install the packages](http://support.wolfram.com/kb/5648)
 
 Examples