Update exercises across site

[rubybaird]

Overview

Exercises in tutorials will be updated for both content and style. This will involve changing the format of exercise boxes to new callout style, adding automatic marking, adapting some existing exercises to multiple choice, and adding new exercises to most tutorials.

To do

• Share sample (string)
• Finalise style / ideal number and spacing of exercises

Once finalised, we will start with the following high-priority tutorials:

• Loading, Saving and Generating Data with R
• Getting Started with R
• Concordancing
• Collocation and N-gram Analysis
• Keyness and Keyword Analysis
• Corpus Linguistics with R
• Practical Overview of Selected Text Analytic Methods
• Topic Modelling
• Sentiment Analysis
• Network Analysis
• Introduction to Quantitative Reasoning
• Basic Concepts in Quantitative Research
• Handling Tables in R
• Descriptive Statistics
• Introduction to Data Viz
• Basic Inferential Statistics