Filter entities by name when extracting data from Arkindex

Closes #134 (closed)

docs/usage/datasets/extract.md

@@ -55,7 +55,7 @@ CLASSEMENT:
 
 ### HTR and NER data from one source
 
-To extract HTR+NER data from **pages** from a folder, you have to define a end token for each entity and use the following command:
+To extract HTR+NER data from **pages** from a folder, you have to define an end token for each entity and use the following command:
 
 ```shell
 teklia-dan dataset extract \
@@ -71,7 +71,7 @@ with `tokens.yml` compliant with the format described before.
 
 ### HTR and NER data from multiple source
 
-To do the same but only use the data from three folders, you have to define a end token for each entity and the commands becomes:
+To do the same but only use the data from three folders, you have to define an end token for each entity and the commands becomes:
 
 ```shell
 teklia-dan dataset extract \
@@ -102,7 +102,7 @@ teklia-dan dataset extract \
 
 ### HTR from multiple element types with some parent filtering
 
-To extract HTR data from **annotations** and **text_zones** from a folder, but only keep those that are children of **single_pages**, you have to define a end token for each entity and use the following command:
+To extract HTR data from **annotations** and **text_zones** from a folder, but only keep those that are children of **single_pages**, you have to define an end token for each entity and use the following command:
 
 ```shell
 teklia-dan dataset extract \