docs: improve descriptions of extensions

Fixes #9

Author: connor4312

README.md

@@ -2,7 +2,8 @@
 
 A custom editor for viewing `.cpuprofile` files in VS Code. Pairs well with out new [JavaScript debugger](https://github.com/microsoft/vscode-js-debug).
 
-![](./screenshot.png)
+![](./table.png)
+![](./flame.png)
 
 
 ## Contributing

flame.png

@@ -1,11 +1,9 @@
 # `vscode-js-profile-flame`
 
-> TODO: description
+This is a custom editor that provides flame graphs for V8-style `.cpuprofile` files. Usage:
 
-## Usage
+1. Install this extension,
+2. Open a `.cpuprofile` file in VS Code,
+3. If you already have another editor, such as the default table view, hit `F1` and then `Reopen With` this extension.
 
-```
-const vscodeJsProfileFlame = require('vscode-js-profile-flame');
-
-// TODO: DEMONSTRATE API
-```
+![Screenshot of the flame graph](https://raw.githubusercontent.com/microsoft/vscode-js-profile-visualizer/master/flame.png)

packages/vscode-js-profile-flame/README.md

@@ -1,11 +1,9 @@
 # `vscode-js-profile-table`
 
-> TODO: description
+This is a custom editor that provides tablular information from for V8-style `.cpuprofile` files. Usage:
 
-## Usage
+1. Install this extension,
+2. Open a `.cpuprofile` file in VS Code,
+3. If you already have another editor, such as the default table view, hit `F1` and then `Reopen With` this extension.
 
-```
-const vscodeJsProfileTable = require('vscode-js-profile-table');
-
-// TODO: DEMONSTRATE API
-```
+![Screenshot of the table](https://raw.githubusercontent.com/microsoft/vscode-js-profile-visualizer/master/table.png)