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gh-119786: Add jit.md. Move adaptive.md to a section of interpreter.md. (#127175)
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‎InternalDocs/README.md

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Program Execution
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---
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- [The Interpreter](interpreter.md)
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- [The Bytecode Interpreter](interpreter.md)
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- [Adaptive Instruction Families](adaptive.md)
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- [The JIT](jit.md)
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- [Garbage Collector Design](garbage_collector.md)
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‎InternalDocs/adaptive.md

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‎InternalDocs/code_objects.md

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although they are often written to disk by one process and read back in by another.
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The disk version of a code object is serialized using the
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[marshal](https://docs.python.org/dev/library/marshal.html) protocol.
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When a `CodeObject` is created, the function `_PyCode_Quicken()` from
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[`Python/specialize.c`](../Python/specialize.c) is called to initialize
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the caches of all adaptive instructions. This is required because the
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on-disk format is a sequence of bytes, and some of the caches need to be
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initialized with 16-bit values.
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Code objects are nominally immutable.
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Some fields (including `co_code_adaptive` and fields for runtime

‎InternalDocs/compiler.md

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* [Exception Handling](exception_handling.md): Describes the exception table
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Specializing Adaptive Interpreter
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=================================
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Adding a specializing, adaptive interpreter to CPython will bring significant
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performance improvements. These documents provide more information:
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* [PEP 659: Specializing Adaptive Interpreter](https://peps.python.org/pep-0659/).
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* [Adding or extending a family of adaptive instructions](adaptive.md)
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References
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==========
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