docs(readme): add open PRs badge + link to samples repo + change 'Docs' to 'Documentation' (strands-agents#100)

Author: awsarron

README.md

@@ -8,14 +8,15 @@
   <div align="center">
     <a href="https://github.com/strands-agents/sdk-python/graphs/commit-activity"><img alt="GitHub commit activity" src="https://img.shields.io/github/commit-activity/m/strands-agents/sdk-python"/></a>
     <a href="https://github.com/strands-agents/sdk-python/issues"><img alt="GitHub open issues" src="https://img.shields.io/github/issues/strands-agents/sdk-python"/></a>
+    <a href="https://github.com/strands-agents/sdk-python/pulls"><img alt="GitHub open pull requests" src="https://img.shields.io/github/issues-pr/strands-agents/sdk-python"/></a>
     <a href="https://github.com/strands-agents/sdk-python/blob/main/LICENSE"><img alt="License" src="https://img.shields.io/github/license/strands-agents/sdk-python"/></a>
     <a href="https://pypi.org/project/strands-agents/"><img alt="PyPI version" src="https://img.shields.io/pypi/v/strands-agents"/></a>
     <a href="https://python.org"><img alt="Python versions" src="https://img.shields.io/pypi/pyversions/strands-agents"/></a>
   </div>
 
   <p>
-    <a href="https://strandsagents.com/">Docs</a>
-    ◆ <a href="https://github.com/strands-agents/docs/tree/main/docs/examples">Samples</a>
+    <a href="https://strandsagents.com/">Documentation</a>
+    ◆ <a href="https://github.com/strands-agents/samples">Samples</a>
     ◆ <a href="https://github.com/strands-agents/tools">Tools</a>
     ◆ <a href="https://github.com/strands-agents/agent-builder">Agent Builder</a>
   </p>