minor documentation polish

Author: Fe-r-oz

docs/src/users_guide/plotting_the_bloch_sphere.md

@@ -137,7 +137,7 @@ fig
 
 The color and shape of the data points is varied automatically by [`Bloch`](@ref). Notice how the color and point markers change for each set of data. Again, we have had to call add_points twice because adding more than one set of multiple data points is not supported by the add_points function.
 
-What if we want to vary the color of our points. We can tell [`Bloch`](@ref) to vary the color of each point according to the colors listed in the `b.point_color`
+What if we want to vary the color of our points. We can tell [`Bloch`](@ref) to vary the color of each point according to the colors listed in the `point_color` attribute..
 
 ```@example Bloch_sphere_rendering
 clear!(b)
@@ -150,7 +150,7 @@ fig, ax = render(b);
 fig
 ```
 
-Now, the data points cycle through a variety of predefined colors. Now lets add another set of points, but this time we want the set to be a single color, representing say a qubit going from the ``|0\rangle`` state to the state in the `y-z` plane:
+Now, the data points cycle through a variety of predefined colors. Now lets add another set of points, but this time we want the set to be a single color, representing say a qubit going from the ``|0\rangle`` state to the ``|1\rangle`` state in the `y-z` plane:
 
 ```@example Bloch_sphere_rendering
 pnts = [xz, yz, zz] ;