Update README.md

Author: KEINOS

README.md

@@ -16,16 +16,16 @@ Used for my art project, but feel free to use it what ever the fun you want.
 │   ├── DCM      // OsiriX DICOM format (Axial 4.0)
 │   ├── TIFF     // TIFF format
 │   └── PNG      // PNG format
-├── 3D
-│   ├── DXF    // Drawing eXchange Format
-│   ├── FBX    // Filmbox FBX v2012/v2015 format
-│   ├── MIX    // Autodesk Meshmixer MIX format
-│   ├── OBJ    // Obj format with no color-per-vertex extension
-│   ├── STL    // STL format 3D model in Bin and ASCII
-│   ├── SVG    // Illustrator SVG Format
-│   ├── VRML   // Version 2.0 utf8 WRL/VRML files
-│   └── X3D    // ISO 19776 XML Format
+├── 3D         // 3D Models in Various Format
+│   ├── DXF      // Drawing eXchange Format
+│   ├── FBX      // Filmbox FBX v2012/v2015 format
+│   ├── MIX      // Autodesk Meshmixer MIX format
+│   ├── OBJ      // Obj format with no color-per-vertex extension
+│   ├── STL      // STL format 3D model in Bin and ASCII
+│   ├── SVG      // Illustrator SVG Format
+│   ├── VRML     // Version 2.0 utf8 WRL/VRML files
+│   └── X3D      // ISO 19776 XML Format
 └── TitleImage.png
 ```
 
-- NOTE: Since the 2D images are not taken in equally spaced intervals, the 3D models are not isotropic as well. Meaning, the aspect ratio may be wrong.
+- NOTE: Since the 2D images were not taken in equally spaced intervals, the 3D models were not isotropic as well. Meaning, the aspect ratio may be wrong.