updated index pages

The index pages were updated with the recently added proofs.

Author: JoramSoch

I/PbA.md

@@ -427,7 +427,7 @@ title: "Proof by Author"
 
 - [Proof Template](/P/-temp-)
 
-### tomfaulkenberry (15 proofs)
+### tomfaulkenberry (16 proofs)
 
 - [Encompassing prior method for computing Bayes factors](/P/bf-ep)
 - [Mean of the ex-Gaussian distribution](/P/exg-mean)
@@ -441,6 +441,7 @@ title: "Proof by Author"
 - [Savage-Dickey density ratio for computing Bayes factors](/P/bf-sddr)
 - [Skewness of the ex-Gaussian distribution](/P/exg-skew)
 - [Skewness of the exponential distribution](/P/exp-skew)
+- [Skewness of the Wald distribution](/P/wald-skew)
 - [Transitivity of Bayes Factors](/P/bf-trans)
 - [Variance of the ex-Gaussian distribution](/P/exg-var)
 - [Variance of the Wald distribution](/P/wald-var)

I/PbN.md

@@ -426,3 +426,4 @@ title: "Proof by Number"
 | P418 | mlr-olstr | [Ordinary least squares for multiple linear regression with two regressors](/P/mlr-olstr) | JoramSoch | 2023-10-06 |
 | P419 | bern-kl | [Kullback-Leibler divergence for the Bernoulli distribution](/P/bern-kl) | JoramSoch | 2023-10-13 |
 | P420 | bin-kl | [Kullback-Leibler divergence for the binomial distribution](/P/bin-kl) | JoramSoch | 2023-10-20 |
+| P421 | wald-skew | [Skewness of the Wald distribution](/P/wald-skew) | tomfaulkenberry | 2023-10-24 |

I/PbT.md

@@ -439,6 +439,7 @@ title: "Proof by Topic"
 - [Simple linear regression is a special case of multiple linear regression](/P/slr-mlr)
 - [Skewness of the ex-Gaussian distribution](/P/exg-skew)
 - [Skewness of the exponential distribution](/P/exp-skew)
+- [Skewness of the Wald distribution](/P/wald-skew)
 - [Square of expectation of product is less than or equal to product of expectation of squares](/P/mean-prodsqr)
 - [Sums of squares for simple linear regression](/P/slr-sss)
 - [Symmetry of the covariance](/P/cov-symm)

I/PwS.md

@@ -136,6 +136,7 @@ title: "Proofs without Source"
 - [Simple linear regression is a special case of multiple linear regression](/P/slr-mlr)
 - [Skewness of the ex-Gaussian distribution](/P/exg-skew)
 - [Skewness of the exponential distribution](/P/exp-skew)
+- [Skewness of the Wald distribution](/P/wald-skew)
 - [Sums of squares for simple linear regression](/P/slr-sss)
 - [Transformation matrices for simple linear regression](/P/slr-mat)
 - [Transitivity of Bayes Factors](/P/bf-trans)