Added TinyCC example readme

.gitmodules

@@ -25,7 +25,6 @@
 [submodule "examples/tmux/repo"]
 	path = examples/tmux/repo
 	url = git@github.com:immunant/tmux-rs.git
-
 [submodule "examples/tinycc/repo"]
 	path = examples/tinycc/repo
 	url = git@github.com:immunant/tinycc-rs.git

examples/tinycc/README.md

@@ -0,0 +1,33 @@
+# tinycc
+
+## Checking out the tcc sources
+
+In `path/to/examples/tinycc`, initialize the git submodule:
+
+`git submodule update --init repo`
+
+## Create a Makefile
+
+in `tinycc/repo`:
+
+`./configure`
+
+## Create a compile_commands.json
+
+in `tinycc/repo`:
+
+`intercept-build make` or `bear make`
+
+If your `compile_commands.json` enables optimizations(`-O2`, `-O3`, etc) you will need to remove them so that unsupported compiler_builtins are less likely to be generated and leave you in an uncompilable state.
+
+Run `rm *.o` here to get rid of gcc generated staticlibs or else you may see `CRITICAL:root:error: some ELF objects were not compiled with clang:` in the next step
+
+## Generate Rust Code
+
+in `tinycc`:
+
+`./translate.py` to translate all required c files into the `tinycc/repo/rust/src` directory.
+
+## Run tinycc
+
+Run `cargo run` to build and execute tinycc.