Small error in documentation file: docs/quickstart.rst

[davidjstudholme]

In docs/quickstart.rst section 1, there is the suggestion to install via conda with this command:
conda install -c bioconda pdp

However, bioconda does not contain any package called pdp. Bioconda does, however, contain a package called find_differential_primers.

So, should this line in docs/quickstart.rst be replaced with this?
conda install -c bioconda find_differential_primers ?

For me, this succeeds in installing find_differential_primers 0.1.4, including a find_differential_primers executable. However, there is no pdp executable.

I realise that this issue probably stems from my confusion about the different versions and branches (#52). Nevertheless, the conda instructions in docs/quickstart.rst should probably be updated since they currently just lead to conda error messages.