diff --git a/docs/modules/0_getting_started/3_how_to_contribute_main.rst b/docs/modules/0_getting_started/3_how_to_contribute_main.rst
index 0325aaacae..9e773e930c 100644
--- a/docs/modules/0_getting_started/3_how_to_contribute_main.rst
+++ b/docs/modules/0_getting_started/3_how_to_contribute_main.rst
@@ -176,7 +176,7 @@ Adding the missed documentations for existing examples is also great contributio
If you check the `Python Robotics Docs`_, you can notice that some of the examples
only have a simulation gif or short overview descriptions or just TBD.,
but no detailed algorithm or mathematical description.
-These documents needs to be improved.
+These documents need to be improved.
This doc `how to write doc`_ can be helpful to write documents.
diff --git a/users_comments.md b/users_comments.md
index 30dc2d2d85..00f77ca8b3 100644
--- a/users_comments.md
+++ b/users_comments.md
@@ -8,7 +8,7 @@ This is an electric wheelchair control demo by [Katsushun89](https://github.com/
[Move to a Pose Control — PythonRobotics documentation](https://atsushisakai.github.io/PythonRobotics/modules/6_path_tracking/move_to_a_pose/move_to_a_pose.html) is used for its control algorithm ([code link](https://github.com/AtsushiSakai/PythonRobotics/blob/master/PathTracking/move_to_pose/move_to_pose.py)).
-
+
Reference:
@@ -101,7 +101,7 @@ Thank you!
---
-Dear AtsushiSakai, Thanks a lot for the wonderful collection of projects.It was really useful. I really appreciate your time in maintaing and building this repository.It will be really great if I get a chance to meet you in person sometime.I got really inspired looking at your work. All the very best for all your future endeavors! Thanks once again,
+Dear AtsushiSakai, Thanks a lot for the wonderful collection of projects.It was really useful. I really appreciate your time in maintaining and building this repository.It will be really great if I get a chance to meet you in person sometime.I got really inspired looking at your work. All the very best for all your future endeavors! Thanks once again,
---Ezhil Bharathi
@@ -163,7 +163,7 @@ so kind of you can you make videos of it.
---
-Dear AtshshiSakai, You are very wise and smart that you created this library for students wanting to learn Probabilistic Robotics and actually perform robot control. Hats off to you and your work. I am also reading your book titled : Python Robotics
+Dear AtsushiSakai, You are very wise and smart that you created this library for students wanting to learn Probabilistic Robotics and actually perform robot control. Hats off to you and your work. I am also reading your book titled : Python Robotics
--Himanshu
@@ -263,7 +263,7 @@ Hey Atsushi We are working on a multiagent simulation game and this project
---
-Thanks a lot for this amazing set of very useful librarires!
+Thanks a lot for this amazing set of very useful libraries!
--Razvan Viorel Mihai
@@ -275,7 +275,7 @@ Dear Atsushi Sakai,
This is probably one of the best open-source roboti
---
-hanks frnd, for ur contibusion
+Thanks friend, for your contribution
—--