diff --git a/README.md b/README.md
index dc52f71..afc1b7f 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,8 @@
 <h1></h1>
 <h3>Web's fastest and most memory-flexible full-text search library with zero dependencies.</h3>
 
-When it comes to raw search speed <a href="https://raw.githack.com/nextapps-de/flexsearch/master/test/benchmark.html" target="_blank">FlexSearch outperforms every single searching library out there</a> and also provides flexible search capabilities like multi-field search, phonetic transformations or partial matching. 
-Depending on the used <a href="#options">options</a> it also provides the <a href="#memory">most memory-efficient index</a>. Keep in mind that updating __existing__ items or removing items from the index has a significant cost. When existing items of your index needs to be updated/removed continuously then <a href="https://github.com/nextapps-de/bulksearch" target="_blank">BulkSearch</a> may be a better choice.
+It is time for a quantum leap in full-text searching algorithms. When it comes to raw search speed <a href="https://raw.githack.com/nextapps-de/flexsearch/master/test/benchmark.html" target="_blank">FlexSearch outperforms every single searching library out there</a> and also provides flexible search capabilities like multi-field search, phonetic transformations or partial matching. 
+Depending on the used <a href="#options">options</a> it also provides the <a href="#memory">most memory-efficient index</a>. FlexSearch introduce a new scoring algorithm called <a href="#contextual">"contextual index"</a> based on a high-performance <a href="#dictionary">pre-scored lexical dictionary</a> architecture which actually performs queries up to 100,000 times faster than Apache Lucene.
 FlexSearch also provides you a non-blocking asynchronous processing model as well as web workers to perform any updates or queries on the index in parallel through dedicated balanced threads. 
 
 FlexSearch Server is available here: <a target="_blank" href="https://github.com/nextapps-de/flexsearch-server">https://github.com/nextapps-de/flexsearch-server</a>.
@@ -416,9 +416,10 @@ FlexSearch introduce a new scoring mechanism called __Contextual Search__ which
 The basic idea of this concept is to limit relevance by its context instead of calculating relevance through the whole (unlimited) distance.<!--Imagine you add a text block of some sentences to an index ID. Assuming the query includes a combination of first and last word from this text block, are they really relevant to each other?-->
 In this way contextual search also <a href="https://raw.githack.com/nextapps-de/flexsearch/master/test/matching.html" target="_blank">improves the results of relevance-based queries</a> on a large amount of text data.
 
+<!--
 > "TF-IDF and all kinds of variations (like BM25) is a big mistake in searching algorithms today. They don't provide neither: a meaningful relevance of a term nor the importance of it! Like many pseudo-intelligent algorithms this is also just an example of mathematical stupidity." — Thomas Wilkerling, _Contextual-based Scoring_, 2018
-
 #### Model of context-based scoring
+-->
 
 <p align="center">
     <img src="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@master/doc/contextual-index.svg">
@@ -536,6 +537,8 @@ The complexity for one single term is always 1.
     -->
 </table>
 
+Keep in mind that updating __existing__ items or removing items from the index has a significant cost. When existing items of your index needs to be updated/removed continuously then <a href="https://github.com/nextapps-de/bulksearch" target="_blank">BulkSearch</a> may be a better choice.
+
 <a name="installation"></a>
 ## Installation
 
diff --git a/dist/flexsearch.compact.js b/dist/flexsearch.compact.js
index a58fa20..506f41c 100644
--- a/dist/flexsearch.compact.js
+++ b/dist/flexsearch.compact.js
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diff --git a/dist/flexsearch.es5.js b/dist/flexsearch.es5.js
index f034074..26ca8a5 100644
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index 439e23d..a402215 100644
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index 024cd99..46f8dff 100644
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+delete this.count[a];delete this.index[a]}this.index[a]=c;this.l[c]=a;this.count[a]=-1;this.cache[a]=b;this.get(a)}else this.cache[a]=b};b.prototype.get=function(a){const b=this.cache[a];if(this.A&&b){var d=++this.count[a];const b=this.index;let c=b[a];if(0<c){const f=this.l;for(var e=c;this.count[f[--c]]<=d&&-1!==c;);c++;if(c!==e){for(d=e;d>c;d--)e=f[d-1],f[d]=e,b[e]=d;f[c]=a;b[a]=c}}}return b};return b}();return n}(!1),this);
diff --git a/flexsearch.js b/flexsearch.js
index 5c36c8e..213c665 100644
--- a/flexsearch.js
+++ b/flexsearch.js
@@ -3508,6 +3508,8 @@
                                     }
                                 }
                             }
+
+                            i = 0;
                         }
                     }
                 }