add mention of user lock-in in non-free sw description

non-free.md

@@ -1,6 +1,6 @@
 # Awesome Selfhosted - Proprietary Software
 
-**Software listed here does not allow you to run it for any purpose, study, modify or distribute the source code.** Some of the software here may not be audited due to it's closed source nature, and can therefore contain anti-features, such as but not limited to: undisclosed security vulnerabilties, backdoors, sending personal data to a third party.
+**Software listed here does not allow you to run it for any purpose, study, modify or distribute the source code.** Some of the software here may not be audited due to it's closed source nature, and can therefore contain anti-features, such as but not limited to: undisclosed security vulnerabilties, backdoors, user lock-in, sending personal data to a third party.
 
 
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