reworded the word 'button' to be more generic and independent from template (FS#2543)

data/pages/wiki/syntax.txt

 ====== Formatting Syntax ======
 
-[[doku>DokuWiki]] supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing the //Edit this page// button at the top or bottom of the page. If you want to try something, just use the [[playground:playground|playground]] page. The simpler markup is easily accessible via [[doku>toolbar|quickbuttons]], too.
+[[doku>DokuWiki]] supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing "Edit this page". If you want to try something, just use the [[playground:playground|playground]] page. The simpler markup is easily accessible via [[doku>toolbar|quickbuttons]], too.
 
 ===== Basic Text Formatting =====
 

inc/lang/en/newpage.txt

 ====== This topic does not exist yet ======
 
-You've followed a link to a topic that doesn't exist yet. If permissions allow, you may create it by using the ''Create this page'' button.
+You've followed a link to a topic that doesn't exist yet. If permissions allow, you may create it by clicking on "Create this page".
 

inc/lang/en/norev.txt

 ====== No such revision ======
 
-The specified revision doesn't exist. Use the ''Old revisions'' button for a list of old revisions of this document.
+The specified revision doesn't exist. Click on "Old revisions" for a list of old revisions of this document.
 

inc/lang/en/searchpage.txt

 ====== Search ======
 
-You can find the results of your search below. If you didn't find what you were looking for, you can create or edit the page named after your query with the appropriate button.
+You can find the results of your search below. If you didn't find what you were looking for, you can create or edit the page named after your query with the appropriate tool.
 
 ===== Results =====