Update README.md

Author: FoleyLab

README.md

@@ -96,9 +96,9 @@ harnessing heat and thermal radiation!
    * Identify Perfectly Absorbing modes
    * Rendering of color of a multi-layer at cool temperatures and at elevated temperatures
 
-The calculations of the quantities above are facilitated by a class called $multilayer$.  The multilayer class parses a dictionary for key 
+The calculations of the quantities above are facilitated by a class called *multilayer*.  The *multilayer* class parses a dictionary for key 
 structural data like the material and thicknesses that comprise the multi-layer structure being modeled, the types of applications one wants to
-consider the multi-layer structure for.  The following is the complete list of dictionary keys the multilayer class will recognize, along with
+consider the multi-layer structure for.  The following is the complete list of dictionary keys the *multilayer* class will recognize, along with
 the data the user can supply in association with each key:
 ```python
 'Lambda_List' # a list of three floats that includes in order (i) shortest wavelength in meters, (ii) longest wavelength in meters, and (iii) total number of wavelengths where you would like the optical quantities to be evaluated.  (Default is [400e-9,6000e-9,1000])
@@ -143,8 +143,8 @@ in the calculation of optical and thermal emission properties as a function of a
 ```
 
 ## Method and attribute list for multilayer class
-Given the input parameters specified above, the multilayer class uses different methods to compute properties relevant for thermal applications, and those properties are store attributes
-of the multilayer object.  The following is a list of methods of the multilayer class and their related attributes:
+Given the input parameters specified above, the *multilayer* class uses different methods to compute properties relevant for thermal applications, and those properties are stored as attributes
+of the *multilayer* object.  The following is a list of methods of the *multilayer* class and their related attributes:
 
 
 ```python