mdhelp: slight clean-up!

docs/property/config_channelicon_path.md

@@ -1,4 +1,6 @@
-: The following placeholders are available:
+: 
+
+The following placeholders are available:
 
 Placeholder | Function
 :----------:| --------

docs/property/config_channelname_scheme.md

@@ -1,8 +1,8 @@
 : 
 
 Note that you must correctly set the *channel icon path* (above) for 
-this option to take effect/generate icon filenames. You may need to use 
-the *[Reset Icon]* button in 
+this option to take effect/be able to generate icon filenames. You may 
+need to use the *[Reset Icon]* button in 
 *Configuration -> Channel / EPG -> Channels* to trigger filename 
 (re-)generation.
 
@@ -12,15 +12,15 @@ No Scheme              | Use service name "as is" to generate the filename.
 All lower-case         | Generate lower-case filenames.
 Service name picons    | Generate lower-case filenames using picon formatting.
 
-When using *No Scheme* or *All lower-case* - spaces are replaced with 
+When using *No Scheme* or *All lower-case* spaces are replaced with 
 underscores `_` and non-alphanumeric characters are URL encoded.
 
-When using the *service name picon scheme* - some characters will be 
-replaced:
+When using the *service name picon scheme* certain characters will be 
+replaced and non-alphanumeric characters removed.
 
-Char                   | Replacement
+Character              | Replacement String
 -----------------------|----------------------
 `*`                    | star
 `+`                    | plus
-` ` (space)            | None (it's removed).  
+` ` (space)            | None (it's removed.)  
 

docs/property/config_picon_servicetype.md

@@ -1,4 +1,4 @@
 :
 If your picon pack uses filenames that start with "1_0_1_xxxx" you'll want to 
 use the *force service type to 1* setting. If your filenames use the 
-standard naming scheme e.g "1_0_19_xxxx" leave it as standard.
+standard naming scheme, e.g "1_0_19_xxxx" leave it as standard.