Correct the documentation

- Fix some style issue, typos, and examples
- Follow the variable naming conventions
- Fix tables both in the project and on the webpage

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com

docs/01.GETTING-STARTED.md

@@ -1,4 +1,4 @@
-### Setting Up Prerequisites
+## Setting up prerequisites
 
 Currently, only Ubuntu 14.04+ is officially supported as primary development environment.
 
@@ -19,38 +19,41 @@ sudo apt-get install gcc g++ gcc-arm-none-eabi cmake cppcheck vera++ python
 
 To make our scripts run correctly, several shell utilities should be available on the system:
 
-- `find`
 - `awk`
+- `bc`
+- `find`
+- `sed`
 
-### Building Jerryscript
+## Building JerryScript
 
-##### To build debug version for Linux:
+**To build debug version for Linux**
 
 ```bash
 python tools/build.py --debug
 ```
 
-##### To build debug version for Linux without LTO (Link Time Optimization):
+**To build debug version for Linux without LTO (Link Time Optimization)**
 
 ```bash
 python tools/build.py --debug --lto=off
 ```
 
-##### Add custom arguments to CMake:
+**Add custom arguments to CMake**
 
 ```bash
 python tools/build.py --cmake-param=CMAKE_PARAM
 ```
 
-##### Set a profile mode (full|minimal):
+**Set a profile mode (full, minimal)**
 
 ```bash
 python tools/build.py --feature=full|minimal
 ```
 
-##### Use (jerry|compiler-default|external libc) libc:
+**Use (jerry, compiler-default, external) libc**
 
 The default libc is jerry-libc, but you can use compiler-default libc or an external libc:
+
 - compiler-default libc:
 
 ```bash
@@ -63,7 +66,7 @@ python tools/build.py --jerry-libc=off --compiler-default-libc=on
 python tools/build.py --jerry-libc=off --compiler-default-libc=off --compile-flag="-I/path/to/libc/include"
 ```
 
-##### Add toolchain file:
+**Add toolchain file**
 
 The ```cmake``` dir already contains some usable toolchain files, which you can use in the following format:
 
@@ -77,72 +80,64 @@ For example the cross-compile to RaspberryPi 2 is something like this:
 python tools/build.py --toolchain=cmake/toolchain_linux_armv7l.cmake
 ```
 
-##### To get a list of all the available buildoptions for Linux:
+**To get a list of all the available buildoptions for Linux**
 
 ```bash
 python tools/build.py --help
 ```
 
-### Checking patch
+## Checking patch
 
 ```bash
 python tools/run-tests.py --precommit
 ```
 
+### Running only one type of test
 
-#### Running only one type of test:
-
-##### To run build option tests:
+**To run build option tests**
 
 ```bash
 python tools/run-tests.py --buildoption-test
 ```
 
-##### To run unittests:
+**To run unittests**
 
 ```bash
 python tools/run-tests.py --unittests
 ```
 
-##### To run jerry-tests:
+**To run jerry-tests**
 
 ```bash
 python tools/run-tests.py --jerry-tests
 ```
 
-##### To run jerry-test-suite:
+**To run jerry-test-suite**
 
 ```bash
 python tools/run-tests.py --jerry-test-suite
 ```
 
-##### To run signed-off check:
+**To run signed-off check**
 
 ```bash
 python tools/run-tests.py --check-signed-off
 ```
 
-##### To run cppcheck:
+**To run cppcheck**
 
 ```bash
 python tools/run-tests.py --check-cppcheck
 ```
 
-##### To run vera check:
+**To run vera check**
 
 ```bash
 python tools/run-tests.py --check-vera
 ```
 
-##### Use toolchain file:
-
-The cmake dir already contains some usable toolchain files, which you can use in the following format:
-
-python tools/run-tests.py --toolchain=TOOLCHAIN
-
-##### To get a list of all the available test options:
+**To get a list of all the available test options**
 
 ```bash
 python tools/run-tests.py --help
 ```
-