fixed links for examples in cursive/Readme.md

[Jadens-arc]

Links for example programs were not linking to example code correctly. Now fixed

[gyscos]

Hi, and thanks for the report!

I see the problem - the readme is in the repository's root, and is symlinked inside cursive/. Conversely, the examples directory is inside the cursive/ folder, and symlinked into the repository's root.

As a result:

• What github renders is the root's Readme, and it currently needs to link to cursive/examples/... to work.
• What crates.io (and probably other crate websites) renders is cursive/Readme.md, which needs to link to examples/... to work.

It doesn't sound easy to do both in the same file.

Instead, we might be able to move cursive/examples to the repo's root, and symlink it into cursive/. I'll try that.

EDIT: Aaand while it works on github, it won't work when rendered on crates.io, since it'll link to cursive/examples/... on github, which is a symlink (and github does not follow symlinks). Sooo I'm not sure relative URLs are an option.

[gyscos]

I ended up using absolute links, as it might be the only way to work on both github's front page and the crates-based pages.