Update README

[eastrd]

• Fix typos and improve readability

[v1sages]

With the introduction of age-sensitive content on blogspot, the first link to blogspot redirects to a sign-in prompt. Recommend revising this project's README with a Wayback Machine screenshot of the blog, which will at a minimum load command syntax examples. Linked below.
Is there a How To?

Check out [this](http://kaoticcreations.blogspot.com/2011/08/automated-lfirfi-scanning-exploiting.html) post by HR ``from [Kaotic Creations](http://kaoticcreations.blogspot.com/) which explains fimap really good :

https://web.archive.org/web/20210330173115/http://kaoticcreations.blogspot.com/2011/08/automated-lfirfi-scanning-exploiting.html?m=1