Add README.

.gitignore

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+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+# Compiled binary files
+bin/*
+
+# Keep files
+!.keep
+
+# Compiled documentation
+docs/html/
+
+# Valgrind data
+vgcore.*
+callgrind.out.*
+
+
+## PYTHON ##
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+## LOCAL ##
+
+sandbox.c
+sandbox/
+
+# Lexer and parser artifacts.
+
+src/codec/grammar_*.c
+src/codec/grammar_*.h
+src/codec/parser_*.c
+include/codec/tokens_*.h
+
+# IDE
+.syntastic*
+.vimrc
+tags

LICENSE

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+----------------------------------------------------------------------------
+"REROUTED BEER-WARE LICENSE" (Revision 42a):
+Stefano Cossu wrote this project.  As long as you retain this notice you
+can do whatever you want with this stuff. If we meet some day, and you think
+this stuff is worth it, you can buy Poul-Henning Kamp <phk@FreeBSD.ORG> a beer
+in return.
+----------------------------------------------------------------------------
+

README.md

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+# Lakesuperior Docker images
+
+For testing the installation environment of Lakesuperior libraries or build
+software upon them.
+
+Based on Alpine Linux.
+
+## Usage
+
+```
+docker build -f lsup_repo.Dockerfile -t lsup_repo:latest .
+docker run lsup_repo:latest sh
+```