Improving orthographic and grammar.

1 files changed, 4 insertions, 4 deletions

diff --git a/docs/user_guide/aruco_marker_pipeline/advanced_topics/optic_parameters_calibration.md b/docs/user_guide/aruco_marker_pipeline/advanced_topics/optic_parameters_calibration.md
index 7bbfc63..625f257 100644
--- a/docs/user_guide/aruco_marker_pipeline/advanced_topics/optic_parameters_calibration.md
+++ b/docs/user_guide/aruco_marker_pipeline/advanced_topics/optic_parameters_calibration.md
@@ -7,7 +7,7 @@ A camera device have to be calibrated to compensate its optical distorsion.
 
 ## Print calibration board
 
-The first step to calibrate a camera is to create an [ArUcoBoard](../../../argaze.md/#argaze.ArUcoMarker.ArUcoBoard) like in the code below:
+The first step to calibrating a camera is to create an [ArUcoBoard](../../../argaze.md/#argaze.ArUcoMarker.ArUcoBoard) like in the code below:
 
 ```python
 from argaze.ArUcoMarker import ArUcoMarkerDictionary, ArUcoBoard
@@ -23,13 +23,13 @@ aruco_board.save('./calibration_board.png', 300)
 ```
 
 !!! note
-      There is **A3_DICT_APRILTAG_16h5_3cm_35cmx25cm.pdf** file located in *./src/argaze/ArUcoMarker/utils/* folder ready to be printed on A3 paper sheet.
+      There is **A3_DICT_APRILTAG_16h5_3cm_35cmx25cm.pdf** file located in *./src/argaze/ArUcoMarker/utils/* folder ready to be printed on an A3 paper sheet.
 
-Let's print the calibration board before to go further.
+Let's print the calibration board before going further.
 
 ## Capture board pictures 
 
-Then, the calibration process needs to make many different captures of an [ArUcoBoard](../../../argaze.md/#argaze.ArUcoMarker.ArUcoBoard) through the camera and then, pass them to an [ArUcoDetector](../../../argaze.md/#argaze.ArUcoMarker.ArUcoDetector.ArUcoDetector) instance to detect board corners and store them as calibration data into an [ArUcoOpticCalibrator](../../../argaze.md/#argaze.ArUcoMarker.ArUcoOpticCalibrator) for final calibration process.
+Then, the calibration process needs to make many different captures of an [ArUcoBoard](../../../argaze.md/#argaze.ArUcoMarker.ArUcoBoard) through the camera and then, pass them to an [ArUcoDetector](../../../argaze.md/#argaze.ArUcoMarker.ArUcoDetector.ArUcoDetector) instance to detect board corners and store them as calibration data into an [ArUcoOpticCalibrator](../../../argaze.md/#argaze.ArUcoMarker.ArUcoOpticCalibrator) for the final calibration process.
 
 ![Calibration step](../../../img/optic_calibration_step.png)