Separate two R regression courses into three courses

[ejh243]

Both of the current R regression workshops have too much content for the time slot so I propose we split into three courses. Furthermore we can give these courses more specific titles rather than beginner and advanced.

My proposed starting point for the three courses are:

1) Linear regression analysis with R to include all the different types of predictor variables. 2) Generalised linear regression analysis with R to include logistic regression and perhaps some poisson regression 3) Mixed effects regression analysis with R.

[ejh243]

FYI these courses are currently developed using the learnr package with the materials in this repo.

On this website we just need the installation.set up instructions.

[ejh243]

Need to create homepages for each workshop and update installation instructions to include the command to load the relevant tutorial.