Работа над документацией по библиотеке

docs/intro-eng.md

@@ -1,8 +1,10 @@
 # Basic Geomtric Computations
 
-[Русская версия / Russian version](intro-rus.md)
+[Русский (Russian)](intro-rus.md)
+[Deutsch (German)](intro-deu.md)
+[简体中文 (Chinese)](intro-zho.md)
 
-## Naming 
+## Naming
 
 C programming language does not have namespaces, thus prefixes often play role of namespaces in C code.
 
@@ -34,8 +36,8 @@ Prefixs of type ends the names of constats, types and functions of the library.
 The library uses two types of floating point numbers: **float** and  **double** (**binary32** and **binary64** types of the **IEEE 754** standard).
 
 Thus there are two prefixes of types:
-- **FP32** - means **F**loating **P**oint, **32** bit, which corresponds to the **float** type of the C programming language.
-- **FP64** - means **F**loating **P**oint, **64** bit, which corresponds to the **double** type of the C programming language.
+- **FP32** - means Floating Point, 32-bit, which corresponds to the **float** type of the C programming language.
+- **FP64** - means Floating Point, 64-bit, which corresponds to the **double** type of the C programming language.
 
 The constants and the types of structures which are based in the **float** type have **FP32_** as the type prefix:
 - BGC_FP32_Vector3
@@ -66,4 +68,3 @@ Using of such prefixes of a basic type allows to enhance the library with new ba
 - [2D-vectors](vector2-eng.md)
 - [3D-vectors](vector3-eng.md)
 - [Quaternions](quaternion-rus.md)
-