Remove comma in CONTRIBUTING.md

Amanda Butler · adbridge · commit 983e32701b9a · 2018-11-16T14:49:17.000Z
Remove unnecessary comma.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -2,4 +2,4 @@
 
 Mbed OS is an open-source, device software platform for the Internet of Things. Contributions are an important part of the platform, and our goal is to make it as simple as possible to become a contributor.
 
-To encourage productive collaboration, as well as robust, consistent, and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/latest/reference/contributing.html).
+To encourage productive collaboration, as well as robust, consistent and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/latest/reference/contributing.html).

Original file line number	Diff line number	Diff line change
`@@ -2,4 +2,4 @@`
`2`	`2`
`3`	`3`	`Mbed OS is an open-source, device software platform for the Internet of Things. Contributions are an important part of the platform, and our goal is to make it as simple as possible to become a contributor.`
`4`	`4`
`5`		`-To encourage productive collaboration, as well as robust, consistent, and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/latest/reference/contributing.html).`
	`5`	`+To encourage productive collaboration, as well as robust, consistent and maintainable code, we have a set of guidelines for [contributing to Mbed OS](https://os.mbed.com/docs/latest/reference/contributing.html).`