Merge pull request #13 from ivankravets/patch-1

@platformio Library Registry manifest file

library.json

@@ -0,0 +1,12 @@
+{
+  "name": "OneButton",
+  "keywords": "arduino, button, pushbutton",
+  "description": "This Arduino libary is improving the usage of a singe button for input. It shows how to use an digital input pin with a single pushbutton attached for detecting some of the typical button press events like single clicks, double clicks and long-time pressing. This enables you to reuse the same button for multiple functions and lowers the hardware invests.",
+  "repository":
+  {
+    "type": "git",
+    "url": "https://github.com/mathertel/OneButton"
+  },
+  "frameworks": "arduino",
+  "platforms": "*"
+}