EN/CityGML-Tutorial/chapter-2:-Building/LOD3.md

@@ -17,13 +17,13 @@ An XML document of CityGML 2.0 LOD3 building object with building solid geometry
     <core:cityObjectMember>
         <bldg:Building gml:id="Simple_BD1">
             .......
-			<bldg:lod3Solid>
+	    <bldg:lod3Solid>
                 <gml:Solid>
                     <gml:exterior>
                         <gml:CompositeSurface>
                             <gml:surfaceMember xlink:href="#Poly_GML_1" /> 
                             <gml:surfaceMember xlink:href="#Poly_GML_1_w1" />
-							<gml:surfaceMember xlink:href="#Poly_GML_" />
+			    <gml:surfaceMember xlink:href="#Poly_GML_" />
                             .......
                         </gml:CompositeSurface>
                     </gml:exterior>
@@ -78,17 +78,17 @@ An XML document of CityGML 2.0 LOD3 building object with building solid geometry
                             </bldg:lod3MultiSurface>
                         </bldg:Door>
                     </bldg:opening>
-				 </bldg:WallSurface>
-			</bldg:boundedBy>
-			<bldg:boundedBy>
-				.......
-			</bldg:boundedBy>	
+	       </bldg:WallSurface>
+	    </bldg:boundedBy>
+	    <bldg:boundedBy>
+	    .......
+	    </bldg:boundedBy>	
           </bldg:Building>
     </core:cityObjectMember>
 </core:CityModel>
 ```
 
-Below figure shows a graphical representation of CityGML 2.0 LOD3 building object:
+The below figure shows a graphical representation of CityGML 2.0 LOD3 building object:
 
 <div align=center>