Merge branch 'docs/add_license_info_to_global_readme' into 'master'

docs(esp-video-components): Add licenses information to global README.md

Closes AEGHB-1237

See merge request espressif/esp-video-components!332

Author: donghengqaz

README.md

@@ -11,4 +11,9 @@ This is the repository for a some video related components, which aims to be upl
 
 ## License
 
-To be added.
+| Component | License |
+|:-|:-|
+| esp_cam_sensor | [Apache V2.0 License](esp_cam_sensor/LICENSE) |
+| esp_sccb_intf | [Apache V2.0 License](esp_sccb_intf/LICENSE) |
+| esp_video | [ESPRESSIF MIT License](esp_video/LICENSE) |
+| esp_ipa | [ESPRESSIF MIT License](esp_ipa/LICENSE) |