update readme.md language (#1333)

Changed phrasing of line about plugins.

Signed-off-by: Erik Bledsoe <[email protected]>

Author: erikbledsoe

README.md

@@ -21,7 +21,7 @@ description: High Performance Telemetry Agent for Logs, Metrics and Traces
   * Security: built-in TLS/SSL support
   * Asynchronous I/O
 * Pluggable Architecture and [Extensibility](development/library_api.md): Inputs, Filters and Outputs
-  * More than 100 built-in plugins are available
+  * Connect nearly any source to nearly any destination using preexisting plugins
   * Extensibility
     * Write any input, filter or output plugin in C language
     * WASM: [WASM Filter Plugins](development/wasm-filter-plugins.md) or [WASM Input Plugins](development/wasm-input-plugins.md)