update readme

inc_pluginfunctions.md

-# [IML Checks for Icinga / Nagios](redme.md)
+# [IML Checks for Icinga / Nagios](readme.md)
 
 ## Shared functions
 
@@ -8,13 +8,14 @@ All scripts start with sourcing a shared bash file
 
     . `dirname $0`/inc_pluginfunctions
 
-In that script are several function starting with prefix **ph.** (=plugin helper)
+In that script are several functions starting with prefix **ph.** (=plugin helper)
 
 ### Available functions
 
 This is a list in alphabetic order
 
 **ph.abort** [TEXT]
+
 Shows error message and exit with status unknown.
 
 **ph.exit**
@@ -52,6 +53,8 @@ You can override it as often you want during the script. Based on the last setti
 
 set statuscode by verifying integer(!) value with crtical and warning limit	
 
+Example:
+
     ph.setStatusByLimit $ramUsage $iWarnLimit $iCriticalLimit
 
 **ph.status** [TEXT]
@@ -70,6 +73,8 @@ Add performance data. Their output will be written with ph.exit. So you are free
 
 For increasing system counters: get changerate per second since last check.
 
+Example:
+
     # speed in byte per sec based on last stored value and its age
     iSpeedRead=` ph.perfdeltaspeed "netio-${myinterface}-rx" $iRead`
 
@@ -79,7 +84,9 @@ dump performance data (if u are not using ph.exit)
 
 **ph.require** [PROG [PROG2]]
 
-check if a binary PROG exists in search path (=are installed) - if not then execution stops with ph.abort	
+check if a binary PROG exists in search path (=are installed) - if not then execution stops with showing a warning message and status unknown (using ph.abort).
+
+Example:
 
     ph.reqire bc lsblk
 

readme.md

@@ -11,4 +11,8 @@ IML - we are the Institute for Medical Education at university in Bern, Switzerl
 
 ## Scripts
 
-[[inc_pluginfunctions.md]]
\ No newline at end of file
+[inc_pluginfunctions](inc_pluginfunctions.md)
+
+## Checks
+
+...
\ No newline at end of file