added images to blog

static/blog.css

wiki/blogposts/cdogma_aarav.md

wiki/blogposts/cell_soham.md

wiki/blogposts/dnarep_devansh.md

wiki/blogposts/mutations_aditey.md

wiki/blogposts/neuron_ritik.md

wiki/blogposts/plasmids_creetika.md

wiki/blogposts/rdna_mihir.md

wiki/blogposts/ribosomes_vidhi.md

wiki/blogposts/translation_chandana.md

wiki/pages/blog.html

wiki/pages/bloglist.html

wiki/pages/edublog.html

wiki/pages/education.html