Merge pull request #647 from opengisch/QF-6873_Document_Max_File_Size

QF-6873-Document_Max_File_Size

Author: beanzmo

documentation/reference/qfieldcloud/projects.en.md

@@ -11,10 +11,16 @@ Users can create any number of projects.
 
 Projects must contain a single `.qgs`/`.qgz` QGIS file, and may in addition contain any combination of geospatial files -- GeoPackages, Shapefiles, TIFs -- or data files such as photos, PDFs etc.
 
-To ensure optimal performance, it is recommended to keep the size of any file sizes below 2GB.
+File Size Recommendations to ensure optimal performance:
+    - **Recommended Limit**: For optimal performance, keep individual file sizes under 2 GB.
+    - **Absolute Maximum**: The system's hard limit is 10 GB. Files larger than this will fail to process.
+
 Larger files than this may take significantly longer to process and lead to [jobs](jobs.md) issues.
+It is therefore recommended to:
+    - Divide large files into smaller pieces
+    - Check the [On-demand Attachment files download](../../get-started/tutorials/advanced-setup-qfc.md)
 
-Files cannot be shared between projects, unless [shared layers](../../how-to/advanced-how-tos/shared-datasets.md) are used.
+Files cannot be shared between projects, unless [shared datasets](../../how-to/advanced-how-tos/shared-datasets.md) are used.
 
 QFieldCloud projects have a name and an owner.
 The owner of a project is a QFieldCloud user or an organization.