Update tools/text_processing/text_processing/replace_text_in_line.xml

Co-authored-by: Björn Grüning <bjoern@gruenings.eu>

Author: dadrasarmin

tools/text_processing/text_processing/replace_text_in_line.xml

@@ -181,7 +181,7 @@ The select tool searches the data for lines containing or not containing a match
 
 
 **Note**: SED uses extended regular expression syntax, not Perl syntax. **\\d**, **\\w**, **\\s** etc. are **not** supported. However, you can use SED FAQ to perform commands using special characters.
-        More complex options can look like sed -e '$!N;s/foo/bar/;'. Here, $!N; is an optional part which you only need to set in very special cases
+        More complex options can look like `sed -e '$!N;s/foo/bar/;'`. Here, `$!N;` is an optional part which you only need to set in very special cases. The `foo` part is the search string, and the `bar` part is the replacement string.
         Please read the SED FAQ here: https://www.pement.org/sed/sedfaq3.html#s3.2
 
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