Fix format to show + and * signs

CHANGELOG.md

 ### v0.2.1 ###
 **Virtual Sensing**
-* Fix a bug where noise was added to the power spectral density matrix for the optimal observation filter calculations in the noiseless case.
+\* Fix a bug where noise was added to the power spectral density matrix for the optimal observation filter calculations in the noiseless case.
 
 
 ### v0.2.0 ###
 **Utilities**
-+ Added a single papameter bisection method.
-* Improved rotation matrix calculation function with degrees and radian calculations available.
-+ Added function to calculate a double-sided spectrum from a single-sided spectrum.
-+ Added a function to calculate the intersection of three vectors.
-+ Added a pair of functions to check for even or odd elements.
-+ Added a function to pick values from a vector based on given probabilities.
-+ Added a function to pick randomly unique rows from a matrix.
-+ Added a Heaviside step function.
-+ Added function to swap argument values. 
+\+ Added a bisection method for single-valued functions.
+\* Improved rotation matrix calculation function with degrees and radian calculations available.
+\+ Added function to calculate a double-sided spectrum from a single-sided spectrum.
+\+ Added a function to calculate the intersection of three vectors.
+\+ Added a pair of functions to check for even or odd elements.
+\+ Added a function to pick values from a vector based on given probabilities.
+\+ Added a function to pick randomly unique rows from a matrix.
+\+ Added a Heaviside step function.
+\+ Added function to swap argument values.
 
 **Optimisation**
-+ Added a MATLAB Memetic Algorithm (MA) implementation.
-* The algorithm calls provided functions and can solve generic problems.
+\+ Added a MATLAB Memetic Algorithm (MA) implementation.
+\* The algorithm calls provided functions and can solve generic problems.
 
 **Control**
-+ Added tonal control in the frequency domain.
-* Control is contained in a single function.
-* Can be used with or without virtual sensing.
-* Implementations of optimal control and FxLMS (still frequency domain) calculations are available.
+\+ Added tonal control in the frequency domain.
+\* Control is contained in a single function.
+\* Can be used with or without virtual sensing.
+\* Implementations of optimal control and FxLMS (still frequency domain) calculations are available.
 
 **Signal Processing - Array Processing**
-+ Added array manifold (steering vector) calculation function.
+\+ Added array manifold (steering vector) calculation function.
 
 **Signal Processing - Generic**
-+ Added frequency band calculation function with 1/1 octave and 1/3 octave bands.
-+ Add fractional delay filter impulse response generation function.
+\+ Added frequency band calculation function with 1/1 octave and 1/3 octave bands.
+\+ Add fractional delay filter impulse response generation function.
 
 **Virtual Sensing - Generic**
-+ Added a multiple coherence calculation function.
+\+ Added a multiple coherence calculation function.
 
 **Virtual Sensing - Remote Microphone Technique**
-* Divide the observation filter and estimation with observation filter in two functions. The return arguments are split appropriately to the function they relate.
-+ Added option to include noise in the monitoring microphone power spectral density matrix with specified SNR value.
+\* Divide the observation filter and estimation with observation filter in two functions. The return arguments are split appropriately to the function they relate.
+\+ Added option to include noise in the monitoring microphone power spectral density matrix with specified SNR value.
 
 **Sound Fields**
-+ Added plane wave calculation function.
-+ Added Circular Harmonics calculation function.
-+ Added Spherical Harmonics calculation function.
-+ Added Discrete Circular Fourier Transform (DCFT) calculation function.
-+ Added Inverse Discrete Circular Fourier Transform (IDCFT) calculation function.
-+ Added Discrete Spherical Fourier Transform (DSFT) calculation function.
-+ Added Inverse Discrete Spherical Fourier Transform (IDSFT) calculation function.
-+ Added function to extrapolate a sound field in the Spherical Harmonics domain.
-+ Added function to calculate sound field generated by a point source in the Spherical Harmonics domain (truncated order).
-+ Added function to calculate sound field generated by a plane wave in the Spherical Harmonics domain (truncated order).  
+\+ Added plane wave calculation function.
+\+ Added Circular Harmonics calculation function.
+\+ Added Spherical Harmonics calculation function.
+\+ Added Discrete Circular Fourier Transform (DCFT) calculation function.
+\+ Added Inverse Discrete Circular Fourier Transform (IDCFT) calculation function.
+\+ Added Discrete Spherical Fourier Transform (DSFT) calculation function.
+\+ Added Inverse Discrete Spherical Fourier Transform (IDSFT) calculation function.
+\+ Added function to extrapolate a sound field in the Spherical Harmonics domain.
+\+ Added function to calculate sound field generated by a point source in the Spherical Harmonics domain (truncated order).
+\+ Added function to calculate sound field generated by a plane wave in the Spherical Harmonics domain (truncated order).  
 
 
 ### v0.1.0 ###
-* This is the initial version of the project.
+\* This is the initial version of the project.