[DOCS] add docs for the annotate tool.
[DOCS] add docs for the annotate tool.

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