done

book/preliminaries/10_geometry/60_transformations.md

@@ -1,7 +1,7 @@
 # Transformations {#transformations status=beta}
 
 <div class="check" markdown="1">
-Required Reading: The following assumes a working familiarity with 2D and 3D Cartesian reference frames. If you are not familiar with Cartesian reference frames, please read the [chapter on reference frames](#reference_frames). Some familiarity with [linear alegra](#linear_algebra) is also helpful.
+Required Reading: The following assumes a working familiarity with 2D and 3D Cartesian reference frames. If you are not familiar with Cartesian reference frames, please read the [chapter on reference frames](+preliminaries#reference_frames). Some familiarity with [linear algebra](+preliminaries#linear_algebra) is also helpful.
 </div>
 
 ## Introduction
@@ -10,14 +10,10 @@ _Transformations_ are functions that map points to other points in space, i.e. $
 
 ## Definitions and important examples
 
-Please refer to the _Robotics Handbook_ section 1.2, and in the context of this course, reader's goal is to attain a conceptual understanding, not necessarily knowing the exact formulae.
+Please refer to the _Robotics Handbook_ section 1.2, and in the context of this course, the reader's goal is to attain a conceptual understanding, not necessarily knowing the exact formulae.
 
-TODO: we need to provide links to the handbook. -AC
+TODO: we need to provide links to the handbook.
 
 ## Applications
 
 TODO: adapt the concepts in the context of Duckietown.
-
-Author: Falcon Dai
-
-Maintainer: Falcon Dai