improve the wiki procedures for flashing microsd

ref https://www.facebook.com/groups/356363581444452/permalink/452875941793215/

user: "needing help to flash microsd card for the h5"
suggested to use the wiki
response "i have been, not helpin me very much, that is where i got link to download the file"

improve the wiki procedures in using the tools and what errors that may occur and how to correct them.