[DOC] improvements to the automated installer documentation.
[DOC] improvements to the automated installer documentation.

heuermh/gemini,arq5x/gemini,udp3f/gemini,bgruening/gemini,bpow/gemini,xuzetan/gemini,brentp/gemini,bgruening/gemini,arq5x/gemini,heuermh/gemini,udp3f/gemini,bgruening/gemini,xuzetan/gemini,brentp/gemini,bpow/gemini,udp3f/gemini,udp3f/gemini,arq5x/gemini,bw2/gemini,bw2/gemini,heuermh/gemini,bgruening/gemini,brentp/gemini,brentp/gemini,bpow/gemini,bw2/gemini,bw2/gemini,heuermh/gemini,arq5x/gemini,xuzetan/gemini,bpow/gemini,xuzetan/gemini