diff --git a/README.md b/README.md
index 358e84380069c582477b5f466ff2cdeddf127bb2..0b16b834bbc955339002baf17ca102ea7e7d0fbd 100644
--- a/README.md
+++ b/README.md
@@ -35,50 +35,80 @@ import plotter
 ```
 
 ### Functions argument description
-Positional arguments for functions `plotter.dump, plotter.plot, plotter.ani_plot, plotter.plot_contour, plotter.avg_plot`:
-<ol>
-  <li>filename, type = string</li>
-</ol>
 
-Optional arguments for functions `plotter.plot, plotter.ani_plot, plotter.plot_contour, plotter.avg_plot`:
-<ol>
-  <li>out, type = string</li>
-  <li>oname, type = string</li>
-  <li>var, type = string</li>
-  <li>mva, type = float</li>
-</ol>
-
-The argument `filename` is the name of a file to read for functions `plotter.plot, plotter.plot_contour, plotter.avg_plot` and the template of filenames for the function `plotter.ani_plot`. `out` is the output directory to save a function result. `oname` is the output name of a function result. `var` is a list or a single variable denoting names(name) to process (may be got from `plotter.dump` function). `mval` is a list or a single variable denoting maximum valid absolute values(value) of `var` variables: values which satisfy the condition `var` > `mval` are set as NaN. 
+- `filename` is the name of a file to read for functions `plotter.plot, plotter.plot_contour, plotter.avg_plot` and the template of filenames for the function `plotter.ani_plot`
+- `out` is the output directory to save a function result 
+- `oname` is the output name of a function result
+- `var` is a list or a single variable denoting names(name) to process (may be got from `plotter.dump` function)
+- `mval` is a list or a single variable denoting maximum valid absolute values(value) of `var` variables: values which satisfy the condition `var` > `mval` are set as NaN. 
+- `min_y` is the minimum value of y-axis for the 1d plotting and the minimum value of the colorbar for the 2d plotting
+- `max_y` is the maximum value of y-axis for the 1d plotting and the maximum value of the colorbar for the 2d plotting
 
 ### Get variable names from file 
-
 Use `plotter.dump(filename)` to get variable names in file `filename`.
 
 ### Plotting a 1D data
-Calling 
 ```python
 plotter.plot(filename)
 ```
-saves XY plots of 1D data contained in file `filename` into *out/oname* file.
 
-### Plotting animation of a 1D data
+Positional arguments:
+1. string $`filename`$
 
-Calling 
+Optional arguments:
+1. string $`out`$
+2. string $`oname`$
+3. string $`var`$
+4. float $`mval`$
+
+Function saves XY plots of 1D data contained in file `filename` into *out/oname* file.
+
+### Plotting animation of a 1D data
+ 
 ```python
 plotter.ani_plot(filename)
 ```
-saves animation of XY plots of 1D data contained in file `filename` into *out/oname* file.
+Function saves animation of XY plots of 1D data contained in files with the template name `filename` into the *out/oname* file.
 
-### Plotting a 2D data
-Calling 
+Positional arguments:
+1. string $`filename`$
+
+Optional arguments:
+1. string $`out`$
+2. string $`oname`$
+3. string or [string] $`var`$
+4. float or [float] $`mval`$
+5. float $`min_y`$
+6. float $`max_y`$
+
+### Plotting a 2D data 
 ```python
 plotter.plot_contour(filename)
 ```
-saves XY contour plots of 2D data contained in file `filename` into *out/oname* file.
+Function saves XY contour plots of 2D data contained in file `filename` into the *out/oname* file.
+
+Positional arguments:
+1. string $`filename`$
+
+Optional arguments:
+1. string $`out`$
+2. string or [string] $`oname`$
+3. string or [string] $`var`$
+4. float or [float] $`mval`$
+5. float or [float] $`min_y`$
+6. float or [float] $`max_y`$
 
 ### Plotting an averaged by x and y coordinates 3D data
-Calling 
 ```python
 plotter.avg_plot(filename)
 ```
-saves XY plots of averaged 3D data contained in file `filename` into *out/oname* file. 
\ No newline at end of file
+Function  saves XY plots of averaged 3D data contained in file `filename` into the *out/oname* file.
+
+Positional arguments:
+1. string $`filename`$
+
+Optional arguments:
+1. string $`out`$
+2. string or [string] $`oname`$
+3. string or [string] $`var`$
+4. float or [float] $`mval`$