Updated Readme.md

readme.md

 
-This is a D language binding for the lmdb (lightning memmapped DB) library.
+# This is a D language binding for the lmdb (lightning memmapped DB) library.
 
-Prerequisites:
+## Prerequisites
 - You must have liblmdb.so 0.9.21 or newer installed on your system
 - A working D compiler and Dub.
 
-Usage:
+## Usage
 - Add 'lmdb' as a dependancy to your dub project file.
 - Please also read the dub documentation for details.
-- Then use 
-
+- Then use the following import in your sources
 ```
 import lmdb;      /* Import the D binding module into scope */
+```
+
+## Advanced usage
+There is some thin OO layer provided. It's experimental right now.
+You can use it by using the import below
+```
 import lmdb_oo;   /* Import optionally a more OO layer, WIP */
 ```
 
-Todos:
-- Added real unit- and module-tests
+## Todos
+- Add CI pipeline (on my own server with GitLab)
+- Added serious unit- and module-tests
+
+Maybe:
 - Create D style OO layer instead of just porting the C++ approach.