[clang][docs][dataflow] Added an introduction to dataflow analysis

This documentation supports the dataflow analysis framework (see "[RFC] A dataflow analysis framework for Clang AST" on cfe-dev). Since the implementation of the framework has not been committed yet, right now the doc describes dataflow analysis in general. Since this is the first markdown document in clang/docs, I added support for Markdown to clang/docs/conf.py in the same way as it is done in llvm/docs. Reviewed By: xazax.hun Differential Revision: https://reviews.llvm.org/D114231
llvm · Dec 6, 2021 · ab31d00 · ab31d00
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diff --git a/clang/docs/DataFlowAnalysisIntro.md b/clang/docs/DataFlowAnalysisIntro.md
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