DOC: some clarifications of the cfood example

src/doc/tutorials/example.rst

@@ -2,13 +2,13 @@ Example CFood
 =============
 
 Let's walk through an example cfood that makes use of a simple directory structure. We assume
-the structure to have the following form, starting from the file crawler root:
+the structure which is supposed to be crawled to have the following form:
 
 .. code-block::
 
    ExperimentalData/
    
-     2022_TestData/
+     2022_ProjectA/
      
        2022-02-17_TestDataset/
          file1.dat
@@ -16,7 +16,7 @@ the structure to have the following form, starting from the file crawler root:
          ...
        ...
      
-     2023_AnotherDataFolder/
+     2023_ProjectB/
        ...
        
      ...
@@ -32,7 +32,7 @@ Let's first clarify the terms we are using:
 
    ExperimentalData/            <--- Category level (level 0)
    
-     2022_TestData/             <--- Project level (level 1)
+     2022_ProjectA/             <--- Project level (level 1)
      
        2022-02-17_TestDataset/  <--- Activity / Measurement level (level 2)
          file1.dat              <--- Files on level 3
@@ -40,7 +40,7 @@ Let's first clarify the terms we are using:
          ...
        ...
      
-     2023_AnotherDataFolder/    <--- Project level (level 1)
+     2023_ProjectB/    <--- Project level (level 1)
        ...
        
      ...