add simple readme

sapher · sapher · commit 79c7d16c694f · 2014-10-26T21:44:24.000+04:00
diff --git a/readme.txt b/readme.txt
@@ -0,0 +1 @@
+This is an Arduino library for the MCP42xxx dual digital potentiometer.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+This is an Arduino library for the MCP42xxx dual digital potentiometer.`