diff --git a/README.md b/README.md
index cf7fb2b8f..493b34a42 100644
--- a/README.md
+++ b/README.md
@@ -393,6 +393,13 @@ For example `"customRanking" => ["desc(population)", "asc(name)"]`
  * **placeholders**: (hash of array of words). This is an advanced use case to define a token substitutable by a list of words without having the original token searchable. It is defined by a hash associating placeholders to lists of substitutable words. For example `"placeholders": { "<streetnumber>": ["1", "2", "3", ..., "9999"]}` placeholder to be able to match all street numbers (we use the `< >` tag syntax to define placeholders in an attribute). For example:
   * Push a record with the placeholder: `{ "name" : "Apple Store", "address" : "&lt;streetnumber&gt; Opera street, Paris" }`
   * Configure the placeholder in your index settings: `"placeholders": { "<streetnumber>" : ["1", "2", "3", "4", "5", ... ], ... }`.
+ * **disableTypoToleranceOn**: (string array). Specify a list of words on which the automatic typo tolerance will be disabled.
+ * **altCorrections**: (object array). Specify alternative corrections that you want to consider. Each alternative correction is described by an object containing three attributes:
+  * **word**: the word to correct
+  * **correction**: the corrected word
+  * **nbTypos** the number of typos (1 or 2) that will be considered for the ranking algorithm (1 typo is better than 2 typos)
+
+  For example `"altCorrections": [ { "word" : "foot", "correction": "feet", "nbTypos": 1}, { "word": "feet", "correction": "foot", "nbTypos": 1}].`
 
 #### Default query parameters (can be overwrite by query)
  * **minWordSizefor1Typo**: (integer) the minimum number of characters to accept one typo (default = 3).