Minor README edits

Author: mikkelfj

README.md

@@ -131,24 +131,24 @@ To create another test project named foobar, call `scripts/setup.sh -s -x
 
 To answer: "How do I integrate FlatCC into my project":
 
-You can, but you do not have to, build the runtime library, and you do not need CMake.
+You do not need CMake and you do not need a prebuilt runtime library, though you can.
 
-You need:
+You need to:
 
-- The files generated by flatcc, obviously.
-- `include/flatcc` in the include path (correct version), using `-I include` if at flatcc root.
-- Link with zero or more .c files from `src/runtime` in your project (correct version).
+- Generate files with the flatcc tool, and include them.
+- Add `include/flatcc` in the include path (correct version), using `-I include` if at flatcc root.
+- Link with zero or more from `src/runtime/*.c` (correct version).
 - Possibly disable certain warnings (notably disable GCC pedantic). The main CMake project does that for you.
-- For some esoteric platforms maybe define `-DPORTABLE_...=0/1` to work around limitations
-like stdalign support, see portable headers for detail.
+- Potentially work around platform limitations, often using `-DPORTABLE_...=0/1`, e.g. if `stdalign.h`
+  should be, but isn't, available on your platform. See `include/flatcc/portable/*.h` for details.
 
-You should be able to compile a test project with just a single line like
+You should be able to compile a test project with just a single line like:
 
 ```
 cc -I include src/runtime/build.c myprogram.c
 ```
 
-If you only read flatbuffers, and do not build, verify, parse or print JSON,
+If you only read flatbuffer files, and do not build, verify, parse JSON, or print JSON,
 you will not need any runtime `.c` files.
 
 You can look at the `../monster/scritps/build.sh` file to see how a minimal