silly tabs instead of spaces:
Merge pull request #148 from depstein/spaces

silly tabs instead of spaces:
Lecture 8
Merge pull request #149 from jayfo/lecture08

Lecture 8
Add link to lecture 07
Create Reading 3 and Calendar
Merge pull request #150 from jayfo/reading3

Reading3
Add feedback session to calendar
Merge pull request #152 from jayfo/calendar

Add feedback session to calendar
Fixed Typo in Lecture 08
Merge pull request #153 from jayfo/lecture08

Fixed Typo in Lecture 08
Lecture 09
Merge pull request #154 from jayfo/lecture09

Lecture 09
Slides for 10/24 section

Closes #151
Merge pull request #155 from depstein/s10-24

Slides for 10/24 section