docs: describe more about raster, vector file formats

Author: Namyalg

.vscode/settings.json

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+{
+    "esbonio.sphinx.confDir": ""
+}

docs/Understanding-FLINT/data-preparation/index.rst

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 Raster
 ~~~~~~
 
-Rasters are a format of spatial files where data is divided evenly into
-individual pixels. For the FLINT the raster files must be able to be
+Rasters are a format of spatial files, and are composed of square pixels 
+of equal size. Each pixel is assigned a value. Some raster file formats 
+are JPEG, JPG, TIFF etc. GeoTIFFs, commonly used in GIS,
+are TIFF files that contain spatial reference information. 
+To represent continuous features like elevation, temperature etc, rasters are preferred.
+For the FLINT the raster files must be able to be
 queried through two means – through specific coordinates as well as
 through an index.
 
@@ -102,10 +106,12 @@ without compromising the processing capacity.
 
 Vector
 ~~~~~~
-
-Vectors are also a format of spatial files for GIS, however, unlike
-rasters, the information relates to points, lines or polygons, rather
-than pixels. For the FLINT, as a minimum, vector files must…..[TBC]
+Vectors are another format of spatial files for GIS. They are composed of 
+points, lines and polygons which are generated by a set of commands or 
+mathematical statements. The Shapefile format is a popular geospatial vector data format. 
+To represent discrete features like a river, road, building etc, 
+vectors are preferred.
+For the FLINT, as a minimum, vector files must…..[TBC]
 
 SQL Database (Relational) Structured Query Language (SQL) database is a
 relational database, meaning that the data is in tabular format, where

docs/test.rst

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+TESTING
+##########################
+
+This is a test page
+-----------------------------
+
+I would like to contribute to moja global's documentation and make it more accessible to people all around the world