[Weak Supervision Guide] Fix links (#941)

* fix links

* fix special characters typo

docs/guides/weak-supervision.ipynb

@@ -26,14 +26,14 @@
     "\n",
     "- Log an unlabelled dataset into Rubrix\n",
     "- Use the `Annotate` mode for hand- and/or bulk-labelling a test set. This test is key to measure the quality and performance of your rules.\n",
-    "- Use the `Define Rules` mode for testing and defining rules. Rules are defined with search queries (using ES query string DSL).\n",
+    "- Use the `Define rules` mode for testing and defining rules. Rules are defined with search queries (using ES query string DSL).\n",
     "- Use the Python client for reading rules, defining additional rules if needed, and train a label (for building a training set) or a downstream model (for building an end classifier).\n",
     "\n",
     "The next sections cover the main components of this workflow. If you want to jump into a practical tutorial, check the [news classification tutorial](../tutorials/weak-supervision-with-rubrix.ipynb).\n",
     "\n",
     "### Weak labeling using the UI\n",
     "\n",
-    "Since version 0.8.0 you can find and define rules directly in the UI. The [`Define rules` mode](../reference/webapp/define_rules.md) is found below the [`Annotate` mode](../reference/webapp/annotate_records.md) on the right sidebar.\n",
+    "Since version 0.8.0 you can find and define rules directly in the UI. The [Define rules mode](../reference/webapp/define_rules.md) is found below the [Annotate mode](../reference/webapp/annotate_records.md) on the right sidebar.\n",
     "\n",
     "The video below shows how you can interactively find and save rules with the UI. For more a full example check the Weak supervision tutorial.\n",
     "\n",
@@ -300,7 +300,7 @@
    "source": [
     "## 2. Defining rules\n",
     "\n",
-    "Let's now define some of the rules proposed in the tutorial [Snorkel Intro Tutorial: Data Labeling](https://www.snorkel.org/use-cases/01-spam-tutorial). Most of these rules can be defined directly in the UI using [Elasticsearch's query string DSL](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html). \n",
+    "Let's now define some of the rules proposed in the tutorial [Snorkel Intro Tutorial: Data Labeling](https://www.snorkel.org/use-cases/01-spam-tutorial). Most of these rules can be defined directly in the UI using [Elasticsearch's query string DSL](../reference/webapp/search_records.md). \n",
     "\n",
     "Rules can also be defined programmatically as shown below. Depending on your use case and team structure you can mix and match both interfaces (UI or Python).\n",
     "\n",

docs/reference/webapp/search_records.md

@@ -24,8 +24,7 @@ This component enables:
 
 **NOTE**: Elasticsearch's query DSL supports **escaping special characters** that are part of the query syntax. The current list special characters are:
 
-| ----------- |
-| `+ - && || ! ( ) { } [ ] ^ " ~ * ? : \` |
+`+ - && || ! ( ) { } [ ] ^ " ~ * ? : \`
 
 To escape these character use the \\ before the character. For example to search for (1+1):2 use the query `\(1\+1\)\:2`.