[compiler-rt] Convert Maintainers.txt into Maintainers.md (#119169)

Structured similarly to llvm/Maintainers.md.

PR has no intent to change any component maintenter.

Author: vitalybuka

compiler-rt/Maintainers.md

@@ -0,0 +1,115 @@
+# Compiler-rt maintainers
+
+This file is a list of the
+[maintainers](https://llvm.org/docs/DeveloperPolicy.html#maintainers) for
+LLVM compiler-rt.
+
+## Current Maintainers
+
+The following people are the active maintainers for the project. Please reach
+out to them for code reviews, questions about their area of expertise, or other
+assistance.
+
+### Builtins Library
+
+Saleem Abdulrasool \
+[email protected] (email), [compnerd](https://github.com/compnerd) (GitHub)
+
+### CFI
+
+Peter Collingbourne \
+[email protected] (email), [pcc](https://github.com/pcc) (GitHub)
+
+### CMake build
+
+Petr Hosek \
+[email protected] (email), [petrhosek](https://github.com/petrhosek) (GitHub)
+
+### CRT
+
+Petr Hosek \
+[email protected] (email), [petrhosek](https://github.com/petrhosek) (GitHub)
+
+### GWP ASAN
+
+Christopher Ferris \
+[email protected] (email), [cferris1000](https://github.com/cferris1000) (GitHub)
+
+### MemProfiling
+
+Teresa Johnson \
+[email protected] (email), [teresajohnson](https://github.com/teresajohnson) (GitHub)
+
+### SafeStack
+
+Peter Collingbourne \
+[email protected] (email), [pcc](https://github.com/pcc) (GitHub)
+
+### Sanitizers
+
+#### Sanitizers not covered by someone else
+
+Vitaly Buka \
+[email protected] (email), [vitalybuka](https://github.com/vitalybuka) (GitHub)
+
+Alexander Potapenko \
+[email protected] (email), [ramosian-glider](https://github.com/ramosian-glider) (GitHub)
+
+#### Data Flow Sanitizer
+
+Andrew Browne \
+[email protected] (email), [browneee](https://github.com/browneee) (GitHub)
+
+#### Numerical Sanitizer (NSAN)
+
+Alexander Shaposhnikov \
+[email protected] (email), [alexander-shaposhnikov](https://github.com/alexander-shaposhnikov) (GitHub)
+
+#### Realtime Sanitizer (RTSan)
+
+Christopher Apple \
+[email protected] (email), [cjappl](https://github.com/cjappl) (GitHub)
+
+David Trevelyan \
+[email protected] (email), [davidtrevelyan](https://github.com/davidtrevelyan) (GitHub)
+
+#### Thread Sanitizer
+
+Dmitry Vyukov \
+[email protected] (email), [dvyukov](https://github.com/dvyukov) (GitHub)
+
+#### Undefined Behavior Sanitizer
+
+Richard Smith \
+[email protected] (email), [zygoloid](https://github.com/zygoloid) (GitHub)
+
+### ORC
+
+Lang Hames \
+[email protected] (email), [lhames](https://github.com/lhames) (GitHub)
+
+### Profile runtime library
+
+Bill Wendling \
+[email protected] (email), [isanbard](https://github.com/isanbard) (GitHub)
+
+### SCUDO
+
+Christopher Ferris \
+[email protected] (email), [cferris1000](https://github.com/cferris1000) (GitHub)
+
+## Inactive Maintainers
+
+The following people have graciously spent time performing maintainer
+responsibilities but are no longer active in that role. Thank you for all your
+help with the success of the project!
+
+### Inactive or former component maintainers
+
+Kostya Serebryany ([kcc](https://github.com/kcc)) - Sanitizers
+
+Evgeniy Stepanov ([eugenis](https://github.com/eugenis)) - Sanitizers
+
+Kostya Kortchinsky ([cryptoad](https://github.com/cryptoad)) - SCUDO
+
+Mitch Phillips ([hctim](https://github.com/hctim)) - GWP ASAN

compiler-rt/Maintainers.txt

@@ -425,7 +425,7 @@ Others only have a lead maintainer listed here.
 
 [Clang-tools-extra maintainers](https://github.com/llvm/llvm-project/blob/main/clang-tools-extra/Maintainers.txt)
 
-[Compiler-rt maintainers](https://github.com/llvm/llvm-project/blob/main/compiler-rt/Maintainers.txt)
+[Compiler-rt maintainers](https://github.com/llvm/llvm-project/blob/main/compiler-rt/Maintainers.md)
 
 [Flang maintainers](https://github.com/llvm/llvm-project/blob/main/flang/Maintainers.txt)