Fix live demo link and minor changes

Home.md

@@ -1,14 +1,14 @@
 # tldr pages
 
-> Simplified and community-driven man pages
+> Simplified and community-driven manpages
 
 ## Usage
 
-View the [live demo](https://tldr.ostera.io) or run the command from your terminal.
+View the [live demo](https://tldr.inbrowser.app) or run the command from your terminal.
 
-~~~shell
+```shell
 tldr tar
-~~~
+```
 
 ![tldr tar command output](https://raw.githubusercontent.com/tldr-pages/tldr/main/images/tldr.svg)
 
@@ -16,21 +16,21 @@ tldr tar
 
 Install the [NodeJS](https://github.com/tldr-pages/tldr-node-client) client:
 
-~~~shell
+```shell
 npm install -g tldr
-~~~
+```
 
 Alternatively, you can also use the [Python client](https://github.com/tldr-pages/tldr-python-client):
 
-~~~shell
+```shell
 pip3 install tldr
-~~~
+```
 
 Or Mac users can also install our [C Client](https://github.com/tldr-pages/tldr-c-client) using Homebrew:
 
-~~~shell
+```shell
 brew install tldr
-~~~
+```
 
 You can also try [[other tldr pages clients|tldr pages clients]].