feat(search-syntax): Add new wildcard ops (#15098)

This PR adds in, and updates the search syntax section covering new
wildcard operators that have been added to the syntax.

Ticket: EXP-502

Author: nsdeschenes

docs/concepts/search/index.mdx

@@ -12,7 +12,10 @@ Search is available on several features throughout [sentry.io](https://sentry.io
 ## Query Syntax
 
 <Alert>
-You'll only need to use query syntax if you're using a Sentry [API](/api/). You'll get pre-populated suggestions once you start typing in your search terms when using the search bar anywhere in [Sentry.io](https://sentry.sentry.io/).
+  You'll only need to use query syntax if you're using a Sentry [API](/api/).
+  You'll get pre-populated suggestions once you start typing in your search
+  terms when using the search bar anywhere in
+  [Sentry.io](https://sentry.sentry.io/).
 </Alert>
 
 Search queries are constructed using a `key:value` pattern, with an optional raw search at the end. Each `key:value` pair is a `token` and the optional raw search is itself a single `token`. The `key:value` pair `tokens` are treated as issue or event properties. The optional raw search is treated as a single `token` and searches event titles/messages.
@@ -115,24 +118,48 @@ is:unresolved !user.email:[email protected]
 
 In the example above, the search query returns all Issues that are unresolved _and_ have not affected the user with the email address `[email protected]`.
 
-#### Wildcards
+#### Wildcard Character
 
-Search supports the wildcard operator `*` as a placeholder for specific characters and strings.
+Search supports the wildcard character `*` as a placeholder for specific characters and strings.
 
 ```
 browser:"Safari 11*"
 ```
 
 In the example above, the search query will match on `browser` values like `"Safari 11.0.2"`, `"Safari 11.0.3"`, etc.
 
-You may also combine operators like so:
+You may also combine the wildcard character `*` with other operators like so:
 
 ```
 !message:"*Timeout"
 ```
 
 In the above example, the search query returns results which do not have message values like `ConnectionTimeout`, `ReadTimeout`, etc.
 
+#### Wildcard Operators
+
+<Alert>
+  When using these operators, the base wildcard character `*` will be treated as
+  a literal character and not as a wildcard.
+</Alert>
+
+Sentry's API supports the use of the following wildcard operators when making requests to the API.
+
+For ease of use, we recommend using the wildcard `*` character instead of these operators when manually querying the API.
+
+```
+# Note: the characters wrapping the operators are `\uf00d`.
+
+# contains, and does not contain
+browser:Containschrome, !browser:Containsfire
+
+# starts with, and does not start with
+browser:StartsWithchrome, !browser:StartsWithchrome
+
+# ends with, and does not end with
+browser:EndsWithchrome, !browser:EndsWithfire
+```
+
 ## Page Filters
 
 Page filters allow you to narrow down the results shown on a page by selecting specific projects, environments, and date ranges. After you've set your filters, they'll persist as you navigate across pages in Sentry.