Add dapp images

[zbraiterman]

I’ve made the following changes, based on feedback I’ve received from @plotnick on my previous pull request (#409):

• Changed the directory from resources to dpps/images
• Removed the Glow logo (I believe that was the “spurious glow executable to which @plotnick had referred).

[zenhack]

I believe the file glow at the root of the repository is the "spurrious executable" @plotnick was talking about. Looking at it, it looks like you overwrote the file with the logo image, but originally this was a script; I suspect Alex skimmed the changes and mistakenly believed you'd committed a compiled executable.

This file should be reverted to what it was on master:

git checkout origin/master -- glow

[zenhack]

As @plotnick mentioned in #411, the link to the GitHub repo does still make sense, since the README can be viewed from a local checkout, not just on GitHub.

[zenhack]

(Also, for the future, you don't need to open a second pull request to make changes; you can just add more changes to the existing branch and push, and it will update the original pr)