diff --git a/README.md b/README.md
index 467a7a87..3babc3c5 100644
--- a/README.md
+++ b/README.md
@@ -16,16 +16,6 @@ Mirrors:
 - https://glcdn.githack.com/curben/urlhaus-filter/raw/master/urlhaus-filter.txt
 - https://cdn.staticaly.com/gl/curben/urlhaus-filter/raw/master/urlhaus-filter.txt
 
-## Description
-
-Following URL categories are removed from the database dump:
-
-- Offline URLs
-- Well-known domains from the [Umbrella Popularity List](https://s3-us-west-1.amazonaws.com/umbrella-static/index.html).
-- False positives ([exclude.txt](src/exclude.txt))
-
-Database dump is saved as [URLhaus.csv](src/URLhaus.csv), get processed by [script.sh](utils/script.sh) and output as [urlhaus-filter.txt](urlhaus-filter.txt).
-
 ## Compatibility
 
 This filter is only tested with uBO. [FilterLists](https://filterlists.com/) shows it is compatible with the following software:
@@ -40,11 +30,13 @@ This filter is only tested with uBO. [FilterLists](https://filterlists.com/) sho
 - [Samsung Knox](https://www.samsungknox.com/)
 - [uMatrix](https://github.com/gorhill/uMatrix)
 
+Note that some of the software above are host-based only, meaning it cannot block malware URLs hosted by well-known domains (e.g. amazonaws.com, docs.google.com, dropbox.com). For best compatibility, use uBO or its fork NanoAdblocker.
+
 ## Issues
 
-Report any false positive by creating an [issue](https://gitlab.com/curben/urlhaus-filter/issues).
+Report any false positive by creating an [issue](https://gitlab.com/curben/urlhaus-filter/issues) or [merge request](https://gitlab.com/curben/urlhaus-filter/merge_requests)
 
-This filter **only** accepts malware URLs from the [URLhaus](https://urlhaus.abuse.ch/).
+This filter **only** accepts malware URLs from [URLhaus](https://urlhaus.abuse.ch/).
 
 Please report new malware URL to the upstream maintainer through https://urlhaus.abuse.ch/api/#submit.
 
@@ -54,7 +46,7 @@ This repo is not endorsed by Abuse.sh.
 
 Since the filter is updated frequently, cloning the repo would become slower over time as the revision grows.
 
-Use shallow clone to get the recent revisions only. Getting the last five revisions is sufficient for a valid MR.
+Use shallow clone to get the recent revisions only. Getting the last five revisions should be sufficient for a valid MR.
 
 `git clone --depth 5 https://gitlab.com/curben/urlhaus-filter.git`