Update CONTRIBUTING.md to reflect Python 3.10+ requirement (#33)

* Update CONTRIBUTING.md to reflect Python 3.10+ requirement



---

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* sig file

* feat: Initialize CLA file with empty signed contributors array

CONTRIBUTING.md

@@ -11,7 +11,7 @@ We're excited you're interested in contributing to Graphiti! This document outli
    cd graphiti
    ```
 3. Set up your development environment:
-   - Ensure you have Python 3.8+ installed.
+   - Ensure you have Python 3.10+ installed.
    - Install Poetry: https://python-poetry.org/docs/#installation
    - Install project dependencies:
      ```

signatures/version1/cla.json

@@ -0,0 +1,3 @@
+{
+    "signedContributors": []
+}