chore: update spec version link

Signed-off-by: Michael Beemer <[email protected]>

Author: beeme1mr

packages/client/README.md

@@ -12,7 +12,7 @@
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 <!-- The 'github-badges' class is used in the docs -->
 <p align="center" class="github-badges">
-  <a href="https://github.com/open-feature/spec/tree/v0.7.0">
+  <a href="https://github.com/open-feature/spec/releases/tag/v0.7.0">
     <img alt="Specification" src="https://img.shields.io/static/v1?label=specification&message=v0.7.0&color=yellow&style=for-the-badge" />
   </a>
   <!-- x-release-please-start-version -->
@@ -39,7 +39,7 @@
 </p>
 <!-- x-hide-in-docs-start -->
 
-[OpenFeature](https://openfeature.dev) is an open standard that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool.
+[OpenFeature](https://openfeature.dev) is an open specification that provides a vendor-agnostic, community-driven API for feature flagging that works with your favorite feature flag management tool.
 
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