Removed unnecessary bullets and headings anchor links in Text message templates.

Updated link text for the 4 template pages in the Using NHS Notify parent page - removed 'Creating...' from the start of each link.

Author: emmagifford

docs/pages/using-nhs-notify/text-message-templates.md

@@ -29,10 +29,8 @@ You can also use [Microsoft Word’s format painter](https://support.microsoft.c
 Find out how to use:
 
 - [personalisation](#personalisation)<!-- markdownlint-disable-line -->
-- [headings](#headings)
 - [body text](#body-text)
 - [links](#links)
-- [bullet points](#bullet-points)
 
 You can also find out about: