Added mainpage documentation

manual/index.dox

@@ -1,4 +0,0 @@
-/*! \mainpage Bakara Manual
-<h2>Build</h2>
-<h2>Examples</h2>
-*/

manual/index.md

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+\mainpage Bakara Manual
+
+## Build
+On windows, make sure you have ms-compiler for C++.<br>
+Then write commands :
+```bash
+	git clone https://github.com/anulax/bakara
+	git submodule init
+	git submodule update
+	.\vendor\premake5 vs2022
+	dotnet build
+	dotnet run
+```
+Or use vs2022 to build your project.
+
+---
+On linux (if you don't have premake5, install it with your distro's packet manager). You have two env variable to change build proccess :
+
+| Name        | Value	    |
+| ----------- | ----------- |
+| autoexec    | 0/1         |
+| clearbin    | 0/1         |
+
+Then write commands :
+
+```bash
+	git clone https://github.com/anulax/bakara
+	git submodule init
+	git submodule update
+	(export clearbin=1 autoexec=1)
+	./build.sh config=release
+```
+---
+## Tuto
+(to do)