diff --git a/README.md b/README.md
index d993d52..ea6dfba 100644
--- a/README.md
+++ b/README.md
@@ -10,23 +10,23 @@ Tested with ffmpeg versions:
 
 # Mains scripts
 There are 4 main scripts : 
-- gen_pattern_sine.sh
+- gen_pattern_sine.sh  
     generate video file with static pattern, time overlay (seconds elapsed from start) and sine wave stereo audio
-- gen_random_noise.sh : 
+- gen_random_noise.sh  
     generate video file with random video, time overlay (seconds elapsed from start and local timestamp) and sine wave stereo audio
-- stream_pattern_sine.sh : 
+- stream_pattern_sine.sh  
     send live stream and save a copy to file with static pattern, time overlay (seconds from start) and sine wave audio
-- stream_random_noise.sh : 
+- stream_random_noise.sh  
     send live stream and save a copy to file with random video, time overlay (seconds elapsed from start and local timestamp) and sine wave audio
 
-Run the scripts with no paramters for help.
+Run the scripts with no parameter for help.
 
 The "random_noise" scripts are designed to produce video streams that are very hard to encode. These are to test worst case scenarii
 
 The "pattern_sine" scripts produce video streams that are lighter to process (use less CPU to encode on peertube side) and compress to a smaller size.
 
 # Helper scripts
-The other scripts are helpers that are just sortcuts to call the main scripts with some pre-devfined parameters values. The names of these scripts should be self explanatory :
+The other scripts are helpers that are just sortcuts to call the main scripts with some pre-defined parameters values. The names of these scripts should be self explanatory :
 
 - gen_pattern_1080p_60s.sh
 - gen_pattern_720p_60s.sh