Update README.md

Add minor formatting marks to make more readable. Ex: `` for `code` and ** for *italics*.

README.md

@@ -18,8 +18,8 @@ Using the nanopb library
 ------------------------
 To use the nanopb library, you need to do two things:
 
-1. Compile your .proto files for nanopb, using protoc.
-2. Include pb_encode.c, pb_decode.c and pb_common.c in your project.
+1. Compile your .proto files for nanopb, using `protoc`.
+2. Include *pb_encode.c*, *pb_decode.c* and *pb_common.c* in your project.
 
 The easiest way to get started is to study the project in "examples/simple".
 It contains a Makefile, which should work directly under most Linux systems.
@@ -30,23 +30,23 @@ README.txt in that folder.
 
 Using the Protocol Buffers compiler (protoc)
 --------------------------------------------
-The nanopb generator is implemented as a plugin for the Google's own protoc
+The nanopb generator is implemented as a plugin for the Google's own `protoc`
 compiler. This has the advantage that there is no need to reimplement the
 basic parsing of .proto files. However, it does mean that you need the
 Google's protobuf library in order to run the generator.
 
 If you have downloaded a binary package for nanopb (either Windows, Linux or
-Mac OS X version), the 'protoc' binary is included in the 'generator-bin'
+Mac OS X version), the `protoc` binary is included in the 'generator-bin'
 folder. In this case, you are ready to go. Simply run this command:
 
     generator-bin/protoc --nanopb_out=. myprotocol.proto
 
 However, if you are using a git checkout or a plain source distribution, you
-need to provide your own version of protoc and the Google's protobuf library.
-On Linux, the necessary packages are protobuf-compiler and python-protobuf.
+need to provide your own version of `protoc` and the Google's protobuf library.
+On Linux, the necessary packages are `protobuf-compiler` and `python-protobuf`.
 On Windows, you can either build Google's protobuf library from source or use
 one of the binary distributions of it. In either case, if you use a separate
-protoc, you need to manually give the path to nanopb generator:
+`protoc`, you need to manually give the path to nanopb generator:
 
     protoc --plugin=protoc-gen-nanopb=nanopb/generator/protoc-gen-nanopb ...
 
@@ -57,7 +57,7 @@ Running the tests
 If you want to perform further development of the nanopb core, or to verify
 its functionality using your compiler and platform, you'll want to run the
 test suite. The build rules for the test suite are implemented using Scons,
-so you need to have that installed. To run the tests:
+so you need to have that installed (ex: `sudo apt install scons` on Ubuntu). To run the tests:
 
     cd tests
     scons