adjusted overview pages for modules

content/Modul_3/en_module_3_overview.md

@@ -20,6 +20,7 @@ values and see their spatial distribution.
 | __[Chapter 1: Digitisation](/content/Modul_3/en_qgis_digitalisation.md)__ | At the end of this chapter, you should: Understand the process of digitisation; Know how to create and edit vector data; Know which digitising errors to avoid. | 
 | __[Chapter 2: Geodata Classification](/content/Modul_3/en_qgis_data_classification.md)__ | At the end of this chapter, you should: Know how to classify geodata in order to gain useful insights; Know how and when to use categorised classification; Know how and when to use graduated classification. |
 | __[Chapter 3: Geodata Selection and Queries](/content/Modul_3/en_qgis_data_queries.md)__ | At the end of this chapter, you should: Know how to select features manually; Know how to select features based on attributes; Know how to formulate a data query with the Expression builder; Know how to select features by location; Know the geometric operators. | 
+| __[Chapter 4: Georeferencing](/content/Modul_3/en_qgis_georeferencing.md)__ | At the end of this chapter, you should: Know how to georeference a map in QGIS; know how to set the transparency of a georeferenced (raster) layer; Know how to digitise vector features from a georeferenced map. | 
 | __[Exercises for Module 3](/content/Modul_3/en_qgis_modul_3_exercises.md)__ | Here, you can find all the exercises for module 3. | 
 
 <!--ADD: after revamp of chapter 2 this needs to be adjusted-->

content/Modul_5/en_module_5_overview.md

@@ -5,6 +5,6 @@ This chapter introduces more intermediate GIS operations that you will most like
 
 | __Chapter__ | __Competences & Objectives__ | 
 | ----------- | ---------------------------- |
-| __[Chapter 1: Spatial Geodataprocessing](/content/Modul_5/en_qgis_spatial_tools.md)__ | At the end of this chapter, you should: Know how to perform clips, buffers, dissolves, or spatial joins; Know how to select by location, or create centroids. |
-| __[Chapter 2: Non-Spatial Geodataprocessing](/content/Modul_5/en_qgis_non_spatial_tools.md)__ | At the end of this chapter, you should: Know how to use table functions; Know how to perform non-spatial data queries; Know how to perform non-spatial joins. |
+| __[Chapter 1: Spatial Data Processing](/content/Modul_5/en_qgis_spatial_tools.md)__ | At the end of this chapter, you should: Know how to perform clips, buffers, dissolves, or spatial joins; Know how to select by location, or create centroids. |
+| __[Chapter 2: Non-Spatial processing](/content/Modul_5/en_qgis_non_spatial_tools.md)__ | At the end of this chapter, you should: Know how to use table functions; Know how to perform non-spatial data queries; Know how to perform non-spatial joins. |
 | __[Exercises for Module 5](/content/Modul_5/en_qgis_modul_5_exercises.md)__ | Here you can find all exercises for module 5. |