Cleanup README and .gitignore

- We don't build with `stack` in CI, so remove mention of it
- ELF is capitalized
- Remove weird/random HTML table in README

.gitignore

@@ -1,6 +1,3 @@
-/.stack-work
-/TAGS
-/stack.yaml
 /dist-newstyle
 /cabal.project.freeze
 /cabal.project.local

README.md

@@ -1,23 +1,7 @@
-<table>
-  <tr>
-    <th>License</th><th>Linux</th>
-  </tr>
-  <tr>
-    <td><a href="LICENSE"><img src="https://img.shields.io/badge/license-BSD-blue.svg" title="License"/></a></td>
-  </tr>
-</table>
-
 # elf-edit
-The elf-edit library provides a datatype suitable for reading and writing Elf files.
+
+The elf-edit library provides a datatype suitable for reading and writing ELF files.
 
 It is a fork of the original elf package on Hackage, but enables modifying
-and serializing Elf files.  These changes are not backwards compatible and hence
+and serializing ELF files.  These changes are not backwards compatible and hence
 we have a new name.
-
-## Building with Stack
-
-To build with Stack, first symlink to one of the provided YAML
-files. For example
-
-    ln -fs stack-8.6.yaml stack.yaml
-    stack build