diff --git a/HW2/README.md b/HW2/README.md
index 5f895e3..f74173b 100644
--- a/HW2/README.md
+++ b/HW2/README.md
@@ -13,7 +13,7 @@ script that will set default plotting parameters. In this file, add the followin
 
     Commit the changes to your repository. 
 
-![projectile(v_mag,theta) predicts the height of the projectile based upon initial
+    ![projectile(v_mag,theta) predicts the height of the projectile based upon initial
 velocity and position, as see in the Figure](projectile.png)
 
 2. Clone your 'homework_1' repository to your own computer. Now, we want to create a
diff --git a/README.md b/README.md
index eebd665..8059993 100644
--- a/README.md
+++ b/README.md
@@ -23,13 +23,20 @@ matlab/octave functions and programming best practices.
 
 ## Teaching Assistants:
 - Graduate: Peiyu Zhang <peiyu.zhang@uconn.edu>
-- Office hours: 2 hours / week 
+- Office hours: Friday 9:00-11:00am in Engineering II room 315
 
+## Course Information
 **Prerequisite:** CE 3110, MATH 2410Q 
 
 **Textbook:** Chapra, Steven, *Applied Numerical Methods with MATLAB for Engineers and
 Scientists* 3rd edition. 
 
+**Tools used:** [Matlab](https://www.mathworks.com/products/matlab.html), 
+[Octave](https://www.gnu.org/software/octave/) , [Github](https://github.com). 
+
+**Recommended tools:** Github Desktop, git, Atom (text editor), Vim (text editor), 
+Jupiter notebook (with matlab or octave kernel) 
+
 ## Grading
 
 | Item | Percent | Requirement |