Merge pull request #12 from bitflipp/documentation

Documentation

Author: bitflipp

README.md

@@ -1,17 +1,13 @@
 # gerberos
 
 gerberos scans sources for lines matching regular expressions and containing IPv4 or IPv6 addresses and performs actions on those addresses.
-Possible sources are (not necessarily existant) non-directory files and systemd journals.
-Addresses can be logged or added to ipsets or nftables that gerberos will manage autonomously.
+Possible sources are (not necessarily existant) non-directory files, systemd journals, kernel messages, and standard outputs of arbitrary processes.
+Addresses can be logged or added to ipsets or nft rulesets that gerberos will manage autonomously.
 
 Minimal additional logic is applied. This is to adhere to the [Unix philosophy](https://en.wikipedia.org/wiki/Unix_philosophy), but impacts gerberos' out-of-the-box usefulness for specific use cases when compared to tools like [fail2ban](https://github.com/fail2ban/fail2ban).
 
 ## Requirements
 
-- Go 1.18 (development only)
-- GNU Make 4.3 (development only, optional)
-- pgrep (system test only, optional)
-
 ### ipset backend
 
 - ipset 6.34
@@ -21,6 +17,12 @@ Minimal additional logic is applied. This is to adhere to the [Unix philosophy](
 
 - nftables v0.9.3 (tested on Ubuntu 20.04)
 
+### Development only
+
+- Go 1.18
+- GNU Make 4.3 (optional)
+- pgrep (system tests only, optional)
+
 ## Build
 
 `make build`