diff --git a/readme.md b/readme.md
index 1ecdda5..c97373c 100644
--- a/readme.md
+++ b/readme.md
@@ -155,14 +155,14 @@ Featured playlists: `Flutter Tutorials`, `Dart & Dart for Beginners`, `Intro to
 [<img align="left" height="94px" width="94px" alt="freeCodeCamp.org channel's avatar" src="https://yt3.ggpht.com/a/AATXAJwFt03RAznOsPwlfo5c1kW1rp-1o3Xgpw9MNreQMQ=s288-c-k-c0xffffffff-no-rj-mo"/>](https://www.youtube.com/channel/UC8butISFwT-Wl7EV0hUK0BQ)
 
 [**freeCodeCamp.org**](https://www.youtube.com/channel/UC8butISFwT-Wl7EV0hUK0BQ) [<img height="16px" width="16px" alt="Badge for verified YouTube channels" src="media/badge-verified.svg" title="Is a verified YouTube channel"/>](badges.md#verified-youtube-channel) [<img height="16px" width="16px" alt="Badge for youtubers that upload videos weekly" src="media/badge-weekly.svg" title="Uploads videos weekly"/>](badges.md#weekly-video-upload) \
-Content about: General Programming, Computer Science, Web Dev, DevOps, etc. \
+Content about: General programming, Computer science, Web Dev, DevOps, etc. \
 Featured Playlists: `Python Tutorials`, `Machine Learning`, `Java Tutorials`. \
 <br/> 
 
 [<img align="left" height="94px" width="94px" alt="CS Dojo channel's avatar" src="https://yt3.ggpht.com/a/AATXAJxJwY29yXENbgxRO0WxVMtiWyt65BT9iF2mNgWJ=s176-c-k-c0x00ffffff-no-rj"/>](https://www.youtube.com/c/CSDojo/)
 
 [**CS Dojo**](https://www.youtube.com/c/CSDojo/) [<img height="16px" width="16px" alt="Badge for verified YouTube channels" src="media/badge-verified.svg" title="Is a verified YouTube channel"/>](badges.md#verified-youtube-channel) \
-Content about: Python and General Concepts \
+Content about: Python and General concepts \
 Featured Playlists: `Data Structures and Algorithms`, `Python Tutorials for Absolute Beginners`, `Coding Interview Questions and Answers`.
 
 [<img align="left" height="94px" width="94px" alt="sentdex channel's avatar" src="https://yt3.ggpht.com/a/AATXAJygbw5_NJRJv11GoqyEXvHiAoLVu3RPOeROEM9Z0Q=s100-c-k-c0xffffffff-no-rj-mo"/>](https://www.youtube.com/c/sentdex)
@@ -245,7 +245,7 @@ Featured playlists: `Array Methods Mini Course`, `Javascript Algorithms + Data S
 [<img align="left" height="94px" width="94px" alt="The Cherno Project's avatar" src="https://yt3.ggpht.com/a/AATXAJwnC9ATEyVr8Mf-Vz3K1hAUMzPXjxz_rp2LZL6JVg=s100-c-k-c0xffffffff-no-rj-mo"/>](https://www.youtube.com/user/TheChernoProject)
 
 [**The Cherno**](https://www.youtube.com/user/TheChernoProject) [<img height="16px" width="16px" alt="Badge for verified YouTube channels" src="media/badge-verified.svg" title="Is a verified YouTube channel"/>](badges.md#verified-youtube-channel) [<img height="16px" width="16px" alt="Badge for youtubers that upload videos weekly" src="media/badge-weekly.svg" title="Uploads videos weekly"/>](badges.md#weekly-video-upload) \
-Content about: C++ and game development \
+Content about: C++, Game development \
 Featured playlists: `Game Engine`, `C++`, `OpenGL`, `3D game programming in java`. \
 <br/>
 
@@ -321,6 +321,12 @@ Content about: Java, Python, C#/C++ \
 Featured Playlists: `playlists of these languages with a lot of videos`. \
 <br/>
 
+[<img align="left" height="94px" width="94px" alt="NullPointer Exception's channel's avatar" src="https://yt3.ggpht.com/ytc/AAUvwnjNuAEn_s-yPHJAT4w-d-r4rUHdEZow5w0fyg47=s88-c-k-c0x00ffffff-no-rj"/>](https://www.youtube.com/channel/UCmWDlvMYYEbW42B8JyxFBcA)
+
+[**NullPointer Exception**](https://www.youtube.com/channel/UCmWDlvMYYEbW42B8JyxFBcA) [<img height="16px" width="16px" alt="Badge for youtubers that upload videos weekly" src="media/badge-weekly.svg" title="Uploads videos weekly"/>](badges.md#weekly-video-upload) \
+Content about: Theoretical, Data \
+Featured Playlists: `Introduction to Data Structures`, `Sorting Algorithm Lectures/Visualizations`, `Introduction to Object-Oriented Programming`.
+
 [🔼 Back to the top](#contents)
 
 ## Web development