doc: fixed section file

Author: bpetit

Cargo.lock

@@ -1 +1,22 @@
-# Compilation for GNU/Linux
+# Compile scaphandre from source (GNU/Linux)
+
+We recommand using this version of the rust toolchain or later:
+
+    cargo --version
+    cargo 1.48.0 (65cbdd2dc 2020-10-14)
+    rustc --version
+    rustc 1.48.0 (7eac88abb 2020-11-16)
+
+To be sure to be up to date, you may install rust from the [official website](https://www.rust-lang.org/) instead of your package manager.
+
+To hack *scaph*, or simply be up to date with latest developments, you can download scaphandre from the main branch:
+
+    git clone https://github.com/hubblo-org/scaphandre.git
+    cd scaphandre
+    cargo build # binary path is target/debug/scaphandre
+
+To use the latest code for a true use case, build for release instead of debug:
+
+    cargo build --release
+
+Binary path is `target/release/scaphandre`.