README: mention 3 missing plugins

[collectd.git] / README

diff --git a/README b/README
index e25fbd9..bd080a1 100644 (file)
--- a/README
+++ b/README
@@ -1,6 +1,6 @@
  collectd - System information collection daemon
 =================================================
-http://collectd.org/
+https://collectd.org/
 
 About
 -----
@@ -51,6 +51,9 @@ Features
     - cgroups
       CPU accounting information for process groups under Linux.
 
+    - chrony
+      Chrony daemon statistics: Local clock drift, offset to peers, etc.
+
     - conntrack
       Number of nf_conntrack entries.
 
@@ -385,6 +388,9 @@ Features
     - wireless
       Link quality of wireless cards. Linux only.
 
+    - xencpu
+      XEN Hypervisor CPU stats.
+
     - xmms
       Bitrate and frequency of music played with XMMS.
 
@@ -505,6 +511,9 @@ Features
       Send an E-mail with the notification message to the configured
       recipients.
 
+    - notify_nagios
+      Submit notifications as passive check results to a local nagios instance.
+
     - exec
       Execute a program or script to handle the notification.
       See collectd-exec(5).
@@ -680,7 +689,8 @@ Prerequisites
     <http://ganglia.info/>
 
   * libgrpc (optional)
-    Used by the `grpc' plugin.
+    Used by the `grpc' plugin. gRPC requires a C++ compiler supporting the
+    C++11 standard.
     <https://grpc.io/>
 
   * libgcrypt (optional)