Update README to reflect increased number of binary contingency table…

… metrics in scores

Signed-off-by: Stephanie Chong <[email protected]>

README.md

@@ -20,7 +20,7 @@ Below is a **curated selection** of the metrics, tools and statistical tests inc
 |-----------------------	|-----------------	|--------------	|
 | **[Continuous](https://scores.readthedocs.io/en/stable/included.html#continuous)**        	|Scores for evaluating single-valued continuous forecasts.                  	|MAE, MSE, RMSE, Additive Bias, Multiplicative Bias, Percent Bias, Pearson's Correlation Coefficient, Kling-Gupta Efficiency, Flip-Flop Index, Quantile Loss, Quantile Interval Score, Interval Score, Murphy Score, and threshold weighted scores for expectiles, quantiles and Huber Loss.             	|
 | **[Probability](https://scores.readthedocs.io/en/stable/included.html#probability)**        |Scores for evaluating forecasts that are expressed as predictive distributions, ensembles, and probabilities of binary events.                   |Brier Score, Continuous Ranked Probability Score (CRPS) for Cumulative Density Functions (CDF) and ensembles (including threshold weighted versions), Receiver Operating Characteristic (ROC), Isotonic Regression (reliability diagrams).               |
-| **[Categorical](https://scores.readthedocs.io/en/stable/included.html#categorical)**       	|Scores for evaluating forecasts of categories.                	|17 binary contingency table (confusion matrix) metrics and the FIxed Risk Multicategorical (FIRM) Score.               	|
+| **[Categorical](https://scores.readthedocs.io/en/stable/included.html#categorical)**       	|Scores for evaluating forecasts of categories.                	|18 binary contingency table (confusion matrix) metrics and the FIxed Risk Multicategorical (FIRM) Score.               	|
 | **[Spatial](https://scores.readthedocs.io/en/stable/included.html#spatial)** 	|Scores that take into account spatial structure.                 	|Fractions Skill Score.              	|
 | **[Statistical Tests](https://scores.readthedocs.io/en/stable/included.html#statistical-tests)** 	|Tools to conduct statistical tests and generate confidence intervals.                 	|Diebold Mariano.              	|
 | **[Processing Tools](https://scores.readthedocs.io/en/stable/included.html#processing-tools-for-preparing-data)**        	|Tools to pre-process data.                 	|Data matching, Discretisation, Cumulative Density Function Manipulation.              	|