Update README.md (#349)

Author: meysam81

README.md

@@ -133,7 +133,7 @@ More coming soon!
 
 Phase operates on an [open-core](https://en.wikipedia.org/wiki/Open-core_model) model, similar to that of [GitLab](https://gitlab.com).
 
-This repo available under the [MIT expat license](/LICENSE), with the exception of the `ee` directory which will contain Pro or Enterprise features requiring a Phase license.
+This repo is available under the [MIT expat license](/LICENSE), with the exception of the `ee` directory which will contain Pro or Enterprise features requiring a Phase license.
 
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