Docs: End bullet items with a period (#2457)

Author: dirkpuge

README.md

@@ -12,19 +12,19 @@
 
 - **Automation** - gulp is a toolkit that helps you automate painful or time-consuming tasks in your development workflow.
 - **Platform-agnostic** - Integrations are built into all major IDEs and people are using gulp with PHP, .NET, Node.js, Java, and other platforms.
-- **Strong Ecosystem** - Use npm modules to do anything you want + over 3000 curated plugins for streaming file transformations
-- **Simple** - By providing only a minimal API surface, gulp is easy to learn and simple to use
+- **Strong Ecosystem** - Use npm modules to do anything you want + over 3000 curated plugins for streaming file transformations.
+- **Simple** - By providing only a minimal API surface, gulp is easy to learn and simple to use.
 
 ## What's new in 4.0?!
 
-* The task system was rewritten from the ground-up, allowing task composition using `series()` and `parallel()` methods
-* The watcher was updated, now using chokidar (no more need for gulp-watch!), with feature parity to our task system
-* First-class support was added for incremental builds using `lastRun()`
-* A `symlink()` method was exposed to create symlinks instead of copying files
+* The task system was rewritten from the ground-up, allowing task composition using `series()` and `parallel()` methods.
+* The watcher was updated, now using chokidar (no more need for gulp-watch!), with feature parity to our task system.
+* First-class support was added for incremental builds using `lastRun()`.
+* A `symlink()` method was exposed to create symlinks instead of copying files.
 * Built-in support for sourcemaps was added - the gulp-sourcemaps plugin is no longer necessary!
-* Task registration of exported functions - using node or ES exports - is now recommended
-* Custom registries were designed, allowing for shared tasks or augmented functionality
-* Stream implementations were improved, allowing for better conditional and phased builds
+* Task registration of exported functions - using node or ES exports - is now recommended.
+* Custom registries were designed, allowing for shared tasks or augmented functionality.
+* Stream implementations were improved, allowing for better conditional and phased builds.
 
 
 ## gulp for enterprise