Merge pull request #37 from mithro/linguist Adding .gitattributes for GitHub language detection.

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..836fe63
--- /dev/null
+++ b/.gitattributes

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+# Settings to improve linguist data reporting (used by GitHub)
+*.v 			linguist-language=Verilog
+*.vh 			linguist-language=Verilog
+
+docs/**			linguist-documentation
+*.txt			linguist-documentation
+*.md			linguist-documentation
+*.rst			linguist-documentation