Update README.md

README.md

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 If there are many lines, it updates the data as fast as possible with each time.
 It is very fast you can be either be synchronized or using **-p** to requiert a minimal time between each update.
 You can also use a first column describing the time in µs to read the line.
-Finaly you can limit the number of line read by using -n.
+Finaly you can limit the number of line read by using **-n**.
 
-To load sound or images, see [i_sndfile](http://blaar.org/../sndfile) and [i_pngfile](http://blaar.org/../png)
+To load sound or images, see [i_sndfile](https://promethe.u-cergy.fr/blaar/sndfile) and [i_pngfile](https://promethe.u-cergy.fr/blaar/png)
 
 from oscillator
 ---------------
 
 `i_oscillator -o/toto` generates sinusoidale oscillations and put it in the channel /toto. 
-You can specify the frequency with -f and the refresh rate with -r.
+You can specify the frequency with `-f` and the refresh rate with `-r`.
 The refresh rate defines how often you will update the value of the oscillator but will not change the frequency.
 
 You can use a buffer to keep the historic of the oscillation.
 
-
 Generate outputs
 ================
 
 to a file
 ---------
 
-`o_fread <channel> -f <filename.tsv>` create a tsv file with the data of the channel. The options are symetrical with i_fread.
+`o_fwrite <channel> -f <filename.tsv>` create a tsv file with the data of the channel. The options are symetrical with **i_fread**.
 
-To save sounds or images see [o_sndfile](http://blaar.org/../sndfile] and [o_pngfile](http://blaar.org/../png]
+To save sounds or images see [o_sndfile](https://promethe.u-cergy.fr/blaar/sndfile] and [o_pngfile](https://promethe.u-cergy.fr/blaar/png]
 
 
     
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