Harmonize project name (lowercase tldr, no semicolon, hyphen-separated)

README.md

@@ -25,7 +25,7 @@ A collection of simplified and community-driven man pages.
 Install it with `npm install -g tldr`
 or [try the web client](http://tldr.ostera.io).
 
-## What is tldr?
+## What is tldr-pages?
 
 New to the command-line world? Or just a little rusty?
 Or perhaps you can't always remember the arguments to `lsof`, or `tar`?
@@ -43,7 +43,7 @@ Surely people could benefit from simplified man pages
 focused on practical examples.
 How about:
 
-![tldr screenshot](images/screenshot.png)
+![screenshot of the tldr-node-client displaying the tldr page for the tar command](images/screenshot.png)
 
 This repository is just that: an ever-growing collection of examples
 for the most common UNIX, Linux, macOS, SunOS and Windows commands.
@@ -126,7 +126,7 @@ You can access these pages on your computer using one of the following clients:
     - [tldr.ooops.me](https://tldr.ooops.me): web client with multilingual support
 
 There is also a comprehensive
-[list of clients in our Wiki](https://github.com/tldr-pages/tldr/wiki/TLDR-clients).
+[list of clients in our Wiki](https://github.com/tldr-pages/tldr/wiki/tldr-pages-clients).
 
 ## Contributing