Update README.md (#389)

Fixing broken link in the Readme file

Signed-off-by: Sean Mcilroy <[email protected]>

README.md

@@ -10,7 +10,7 @@ This document, the Software Carbon Intensity technical specification, describes
 Electricity has a carbon intensity depending on where and when it is consumed. An intensity is a rate. It has a numerator and a denominator. A rate provides you with helpful information when considering how to design, develop, and deploy software applications. This specification describes the carbon intensity of a software application or service.
 
 ## Getting Started
-- The development version of the specification is [here](https://github.com/Green-Software-Foundation/software_carbon_intensity/blob/dev/Software_Carbon_Intensity/Software_Carbon_Intensity_Specification.md).
+- The development version of the specification is [here](https://github.com/Green-Software-Foundation/sci/blob/dev/SPEC.md).
 - The latest published version of the specification is [here](https://github.com/Green-Software-Foundation/software_carbon_intensity/blob/main/Software_Carbon_Intensity/Software_Carbon_Intensity_Specification.md).
 - The `dev` branch contains the current version that is being worked on and the `main` branch contains the latest published version.
 - Check the [issues tab](https://github.com/Green-Software-Foundation/software_carbon_intensity/issues) for active and closed conversations regarding the spec.