docs: Adding instruction to install python3-dev

[KrishnanPrash]

Overview:

For initial setup, added a step to install system package python3-dev because it is required at runtime by certain backends.

Summary by CodeRabbit

• Documentation
  • Added an “Install Python development headers” subsection to the Installation guide, explaining the requirement for Python headers to enable JIT compilation.
  • Provided a ready-to-use command for Debian/Ubuntu systems (sudo apt install python3-dev) to help users set up the necessary dependencies and avoid build issues during installation.

[coderabbitai]

Walkthrough

Updated README.md to add an Installation subsection instructing users to install Python development headers required for JIT compilation, including an apt command example.

Changes

Cohort / File(s)	Summary
Docs — Installation headers note README.md	Added "Install Python development headers" subsection explaining the requirement for JIT compilation and providing sudo apt install python3-dev command.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

I twitch my nose at fresh install notes,
New headers hop in tidy quotes.
With JITs that sprint and bytes that weave,
We apt-get tools, then swiftly leave.
Thump-thump—docs aligned, so neat!
Carrot-powered builds complete. 🥕

Pre-merge checks

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Description Check	⚠️ Warning	The provided description includes only the Overview section and omits the required Details, Where should the reviewer start, and Related Issues sections defined in the repository’s template.	Please expand the PR description to include the Details section explaining the specific documentation changes, a Where should the reviewer start section pointing to the added subsection in README.md, and a Related Issues section linking any relevant issue numbers.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The title clearly describes the main change in the pull request by stating that documentation is being updated to include instructions for installing python3-dev, and it follows the repository’s concise and conventional format.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

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📥 Commits

Reviewing files that changed from the base of the PR and between b954a24 and 339f204.

📒 Files selected for processing (1)

• README.md (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: Build and Test - dynamo

🔇 Additional comments (1)

README.md (1)

87-93: Helpful addition!

Clear explanation plus command makes the dependency requirement obvious for new contributors.

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