Move pages under tldr, lint run.sh, update docs

tldr/llvm-config

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# llvm-config
+
+> Get various configuration information needed to compile programs which use LLVM.
+> Typically called from build systems, like in Makefiles or configure scripts.
+> More information: <https://llvm.org/docs/CommandGuide/llvm-config.html>.
+
+- Compile and link an LLVM based program:
+
+`clang++ $(llvm-config --cxxflags --ldflags --libs) --output {{path/to/output_executable}} {{path/to/source.cc}}`
+
+- Print the `PREFIX` of your LLVM installation:
+
+`llvm-config --prefix`
+
+- Print all targets supported by your LLVM build:
+
+`llvm-config --targets-built`