Move compilation instructions to separate file

Most users should use distribution packages and expert users can
consult this file.  References #991.

COMPILATION.md

@@ -0,0 +1,28 @@
+# Compilation from source code
+
+These are generic instructions should work on almost any GNU/Linux, macOS, BSD, or similar.
+
+If you want specific instructions for some distributions, check the [wiki](https://github.com/s3fs-fuse/s3fs-fuse/wiki/Installation-Notes).
+
+Keep in mind using the pre-built packages when available.
+
+1. Ensure your system satisfies build and runtime dependencies for:
+
+* fuse >= 2.8.4
+* automake
+* gcc-c++
+* make
+* libcurl
+* libxml2
+* openssl
+
+2. Then compile from master via the following commands:
+
+```
+git clone https://github.com/s3fs-fuse/s3fs-fuse.git
+cd s3fs-fuse
+./autogen.sh
+./configure
+make
+sudo make install
+```