Update CHANGELOG.md

CHANGELOG.md

@@ -226,7 +226,7 @@ is `smoothing_penalizer`.
  - Fixes bug in 1-d input not returning in CoxPHFitter
  - Lots of new tests.
 
-####0.4.3
+#### 0.4.3
  - refactoring of `qth_survival_times`: it can now accept an iterable (or a scalar still) of probabilities in the q argument, and will return a DataFrame with these as columns. If len(q)==1 and a single survival function is given, will return a scalar, not a DataFrame. Also some good speed improvements.
  - KaplanMeierFitter and NelsonAalenFitter now have a `_label` property that is passed in during the fit.
  - KaplanMeierFitter/NelsonAalenFitter's inital `alpha` value is overwritten if a new `alpha` value is passed
@@ -235,7 +235,7 @@ is `smoothing_penalizer`.
     med(S(t | T>s)) - s, human readable: the estimated time left of living, given an individual is aged s.
 - Adds option `include_likelihood` to CoxPHFitter fit method to save the final log-likelihood value.
 
-####0.4.2
+#### 0.4.2
 
  - Massive speed improvements to CoxPHFitter.
  - Additional prediction method: `predict_percentile` is available on CoxPHFitter and AalenAdditiveFitter. Given a percentile, p, this function returns the value t such that *S(t | x) = p*. It is a generalization of `predict_median`.
@@ -246,15 +246,15 @@ is `smoothing_penalizer`.
 - Bumping up the number of samples in statistical tests to prevent them from failing so often (this a stop-gap)
 - pep8 everything
 
-####0.4.1.1
+#### 0.4.1.1
 
 - Ability to specify default printing in statsitical tests with the `suppress_print` keyword argument (default False).
 - For the multivariate log rank test, the inverse step has been replaced with the generalized inverse. This seems to be what other packages use.
 - Adding more robust cross validation scheme based on issue #67.
 - fixing `regression_dataset` in `datasets`.
 
 
-####0.4.1
+#### 0.4.1
 
  - `CoxFitter` is now known as `CoxPHFitter`
  - refactoring some tests that used redundant data from `lifelines.datasets`.
@@ -266,7 +266,7 @@ is `smoothing_penalizer`.
  - Adding a Changelog.
  - more sanitizing for the statistical tests =)
 
-####0.4.0
+#### 0.4.0
 
  - `CoxFitter` implements Cox Proportional Hazards model in lifelines.
  - lifelines moves the wheels distributions.