fix urls

Author: dham

doc/source/a2_git.rst

@@ -123,8 +123,8 @@ computers.
 
 Before you start configuring Git, you'll want to make sure that you have a
 working Git installation using the instructions on the book web page: 
-`https://object-oriented-programming.github.io/install_git.html
-<https://object-oriented-programming.github.io/install_git.html>`__
+`https://object-oriented-python.github.io/installation.html
+<https://object-oriented-python.github.io/installation.html>`__
 
 Your details
 ~~~~~~~~~~~~
@@ -318,8 +318,8 @@ For each exercise, your module will provide access to a link that you can use
 to accept the corresponding GitHub classroom assignment. In this case, there is
 a tiny toy assignment created just for this exercise. The assignment acceptance
 link is available on the exercises page for this book:
-`https://object-oriented-programming.github.io/edition2/exercises.html
-<https://object-oriented-programming.github.io/edition2/exercises.html>`__
+`https://object-oriented-python.github.io/edition2/exercises.html
+<https://object-oriented-python.github.io/edition2/exercises.html>`__
 
 When you click on the assignment, if you're not already logged into your `GitHub
 <https://GitHub.com>`__ account then you will be prompted to do so. If this is

doc/source/exercises.rst

@@ -12,7 +12,7 @@ GitHub Classroom assignments for the exercises, you should not use the links
 here but rather use the Classroom links provided by your instructor. Students
 taking Principles of Programming at Imperial College London will find their
 list of GitHub Classroom links `on Blackboard
-<https://bb.imperial.ac.uk/webapps/blackboard/content/listContent.jsp?course_id=_31418_1&content_id=_2390977_1>`__.
+<https://bb.imperial.ac.uk/webapps/blackboard/content/listContentEditable.jsp?content_id=_2707976_1&course_id=_34500_1>`__.
 
 
 * `Chapter 2 exercises <https://github.com/object-oriented-python/exercises-chapter-2>`__