7z: update page (#11601)

pages/common/7z.md

@@ -31,6 +31,6 @@
 
 `7z l {{path/to/archive.7z}}`
 
-- List available archive types:
+- Set the level of compression (higher means more compression, but slower):
 
-`7z i`
+`7z a {{path/to/archive.7z}} -mx={{0|1|3|5|7|9}} {{path/to/file_or_directory}}`

pages/common/7za.md

@@ -32,6 +32,6 @@
 
 `7za l {{path/to/archive.7z}}`
 
-- List available archive types:
+- Set the level of compression (higher means more compression, but slower):
 
-`7za i`
+`7za a {{path/to/archive.7z}} -mx={{0|1|3|5|7|9}} {{path/to/file_or_directory}}`

pages/common/7zr.md

@@ -28,6 +28,6 @@
 
 `7zr l {{path/to/archive.7z}}`
 
-- List available archive types:
+- Set the level of compression (higher means more compression, but slower):
 
-`7zr i`
+`7zr a {{path/to/archive.7z}} -mx={{0|1|3|5|7|9}} {{path/to/file_or_directory}}`