update BUILD and releases/README formatting; fix links and python install command

Signed-off-by: Christoph Stenglein <[email protected]>

Author: Christoph Stenglein

BUILD.md

@@ -35,7 +35,7 @@ The container will contain all tools needed to build the project but it is still
 the J-Link software to flash the bootloader.  Run the commands below to build the container and
 execute a persistent one.
 
-```
+```sh
 make dockerinit
 make dockerdev
 ```
@@ -48,7 +48,7 @@ it is necessary to flash the device in a terminal not running in docker.
 Make sure you have [Homebrew](https://brew.sh) installed.
 Install the dependencies with:
 
-```bash
+```sh
 brew install hidapi cmake protobuf
 brew install automake libtool # for building some code in the external/ folder
 brew tap osx-cross/arm
@@ -57,7 +57,7 @@ brew install arm-gcc-bin
 
 Add the following directory in this repository to your `PATH` in `~/.bash_login`:
 
-```bash
+```sh
 export PATH="$PATH:[…]/bitbox02-firmware/tools/nanopb/generator"
 ```
 
@@ -68,52 +68,60 @@ Connect the J-Link to the debug pins on the BitBox02 prototype board.
 Plug in both the J-Link hardware and the BitBox02 device into USB ports on your computer or a hub connected to your computer.
 
 Build the firmware:
-```
+
+```sh
 git clone --recurse-submodules https://github.com/digitalbitbox/bitbox02-firmware && cd bitbox02-firmware
 # or via ssh
 git clone --recurse-submodules [email protected]:digitalbitbox/bitbox02-firmware.git && cd bitbox02-firmware
 make firmware # requires a GNU ARM toolchain for cross-compiling
 ```
 
 If you have already cloned the repository without the `--recurse-submodules` argument, run:
-```
+
+```sh
 git submodule update --init --recursive
 ```
 
 Build the bootloader:
-```
+
+```sh
 make bootloader
 ```
 
 (to create a bootloader for a devdevice or a production device, use `make bootloader-devdevice` or
 `make bootloader-production` respectively).
 
 Load the bootloader by JLink (requires JLinkExe in PATH).
-```
+
+```sh
 make jlink-flash-bootloader
 ```
 
-You need to install the [BitBox02 Python Library](py/README.md) before you can flash the built firmware.
+You need to install the [BitBox02 Python Library](#BitBox02-Python-library) before you can flash the built firmware.
 
 Load the firmware by the bootloader (requires loading bootloader.bin by JLink, if not already loaded on the device):
-```
+
+```sh
 make flash-dev-firmware
 ```
 
 Load the firmware by JLink:
-```
+
+```sh
 make jlink-flash-firmware
 ```
 
 ### Build reference documentation (Doxygen)
 
 Dependencies:
-```
+
+```sh
 brew install graphviz doxygen
 ```
 
 Build:
-```
+
+```sh
 make docs
 ```
 
@@ -123,30 +131,30 @@ To view the results, open `build/docs/html/index.html` in a web browser.
 
 There is a Python api library in `py/bitbox02`.
 
-Run `pip install -r py/requirements.txt -r py/bitbox02/requirements.txt` to install the deps (virtualenv recommended).
+Run `pip install -r py/requirements.txt` to install the deps (virtualenv recommended).
 
 `make -C py/bitbox02` to generate the protobuf files.
 
 To kick off some api calls:
 
-```
+```sh
 ./py/send_message.py
 ```
 
 ### Unit tests
 
-We are using CMocka (https://cmocka.org/) for unit tests. To run the tests, the CMocka library
+We are using CMocka [https://cmocka.org/](https://cmocka.org/) for unit tests. To run the tests, the CMocka library
 needs to be installed on your system.
 
 If you're on a Mac, you can use the brew command to install it:
 
-```
+```sh
 brew install cmocka
 ```
 
 Alternatively, you can get CMocka by cloning the git repository and following these instructions:
 
-```
+```sh
 git clone git://git.cryptomilk.org/projects/cmocka.git
 cd cmocka
 mkdir build && cd build
@@ -157,25 +165,25 @@ make && sudo make install
 By default, the library will be installed into /usr/local/lib64 directory under Linux x86\_64.
 If the library is not on the library path by default, you might need to export the following environment variable:
 
-```
+```sh
 export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib64/
 ```
 
 Then you can run the tests by executing
 
-```
+```sh
 make run-unit-tests # or make -C build-build test
 ```
 
 ### Coverage
 
 gcovr or lcov/genhtml can be used to generate HTML coverage reports using the following commands:
 
-```
+```sh
 make coverage # or make -C build-build coverage
 ```
 
-```
+```sh
 make -C build-build coverage-lcovr
 ```
 
@@ -200,7 +208,7 @@ with the resulting `device-test.bin` that gets built into `test/device-test/buil
 
 You can run `setup_test.py` as follows:
 
-```
+```sh
 ./test/device-test/setup_test.py -t test/device-test/src/startup_test.c
 ```
 
@@ -211,7 +219,7 @@ If you run it successfully, the device should print `Integration test` on the sc
 The test becomes more interesting as we add the ability to function in a python script.
 Here is an example for a python test:
 
-```
+```python
 #!/usr/bin/env python
 
 from setup_test import *

releases/README.md

@@ -42,7 +42,7 @@ A valid signature means that the signer confirms that they could reproduce the b
 stated version tag.
 
 You can check that the released signed firmware (usually named `firmware.vX.Y.Z.signed.bin`)
-contains the unsigned binary with:
+contains the unsigned binary with the following script (please install the [BitBox02 Python Library](../BUILD.md#BitBox02-Python-library) first):
 
 ```sh
 ./describe_signed_firmware.py firmware.vX.Y.Z.signed.bin
@@ -74,7 +74,7 @@ the same result. Please open a PR to add your signed message confirming this. Si
 like this *only* confirms that you got the same result. It *does not* endorse the contents or
 quality of the binary itself.
 
-### How to reproduce:
+### How to reproduce
 
 Run `./build.sh <version tag> <make command>`, e.g.:
 
@@ -90,12 +90,14 @@ When it successfully finishes, print the sha256 hash of the binary:
 
 ```sh
 # linux
-sha256sum temp/build/bin/firmware.bin
+sha256sum temp/build/bin/firmware.bin         # multi edition firmware
+sha256sum temp/build/bin/firmware-btc.bin     # bitcoin-only firmware
 # macOS
-shasum -a 256 temp/build/bin/firmware.bin
+shasum -a 256 temp/build/bin/firmware.bin     # multi edition firmware
+shasum -a 256 temp/build/bin/firmware-btc.bin # bitcoin-only firmware
 ```
 
-**Contributing your signature**
+### Contributing your signature
 
 Please inspect the `assertion.txt` in the relevant subfolder,
 e.g. [firmware-v4.1.0/assertion.txt](firmware-v4.1.0/assertion.txt). If you agree to its contents