Apply suggestions from code review

Co-authored-by: Tomasz Dąbrowski <[email protected]>

Author: mnocon

docs/update_and_migration/from_3.3/update_from_3.3.md

@@ -447,11 +447,9 @@ No additional steps needed.
 #### Security
 
 This release contains security changes.
-For each of following advisories evaluate the vulnerability to determine whether you might have been affected. 
+For each of the following advisories, evaluate the vulnerability to determine whether you might have been affected. 
 If so, take appropriate action, for example by [revoking passwords](https://doc.ibexa.co/en/latest/users/passwords/#revoking-passwords) for all affected users.
 
-You can find the two advisories below:
-
 ##### <abbr title="Browser Reconnaissance & Exfiltration via Adaptive Compression of Hypertext">BREACH</abbr> vulnerability
 
 [The BREACH attack](https://www.breachattack.com/) is a security vulnerability against HTTPS when using HTTP compression.
@@ -480,7 +478,7 @@ Fastly users are not affected.
     Update your Varnish VCL file to align it with the [`vendor/ezsystems/ezplatform-http-cache/docs/varnish/vcl/varnish7.vcl`](https://github.com/ezsystems/ezplatform-http-cache/blob/2.3/docs/varnish/vcl/varnish7.vcl) file.
     ```
 
-If you're not using a reverse proxy like Varnish or Fastly, adjust the compressed Content Type in the webserver configuration.
+If you're not using a reverse proxy like Varnish or Fastly, adjust the compressed Content Type in the web server configuration.
 For more information. see the [updated Apache and nginx template configuration](https://github.com/ibexa/post-install/pull/86/files).
 
 For more information about the vulnerability, see the security advisory[TODO: insert link].
@@ -493,9 +491,10 @@ For more information, see the security advisory[TODO: insert link].
 #### Other changes
 
 ##### Remove duplicated entries in `ezcontentobject_attribute` table
-This release comes with a command to clean up the duplicated entries in the `ezcontentobject_attribute` table, caused by the issue described in [IBX-8562](https://issues.ibexa.co/browse/IBX-8562).
 
-If you're affected you can remove the duplicated entries by running the following command:
+This release comes with a command to clean up duplicated entries in the `ezcontentobject_attribute` table, which were created due to an issue described in [IBX-8562](https://issues.ibexa.co/browse/IBX-8562).
+
+If you're affected, remove the duplicated entries by running the following command:
 ``` bash
 php bin/console ibexa:content:remove-duplicate-fields
 ```
@@ -507,7 +506,7 @@ php bin/console ibexa:content:remove-duplicate-fields
 You can customize the behavior of the command with the following options:
 
 - `--batch-size` or `-b` - number of attributes affected per iteration. Default value = 10000.
-- `--max-iterations` or `-i` - max. iterations count (default or -1: unlimited). Default value = -1.
+- `--max-iterations` or `-i` - maximum iterations count. Default value = -1 (unlimited).
 - `--sleep` or `-s` - wait time between iterations, in milliseconds. Default value = 0.
 
 ##### Update webserver configuration