Add note re: query language using json

README.md

@@ -37,7 +37,7 @@ search_pv(query = '{"_gte":{"patent_date":"2007-01-01"}}',
 #> total_patent_count = 100,000
 ```
 
-This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html), though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
+This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html) which uses JSON, though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
 
 Fields
 ------

inst/doc/patentsview.Rmd

@@ -38,7 +38,7 @@ search_pv(query = '{"_gte":{"patent_date":"2007-01-01"}}',
           endpoint = "patents")
 ```
 
-This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html), though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
+This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html) which uses JSON, though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
 
 ## Fields
 

inst/doc/patentsview.html

@@ -98,7 +98,7 @@ <h2>Basic usage</h2>
 <span class="co">#&gt; #### Distinct entity counts across all downloadable pages of output:</span>
 <span class="co">#&gt; </span>
 <span class="co">#&gt; total_patent_count = 100,000</span></code></pre></div>
-<p>This call to <code>search_pv</code> sends our query to the “patents” endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API’s <a href="http://www.patentsview.org/api/query-language.html">query language</a>, though we could have used pure R functions (described in the <a href="https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd">writing queries vignette</a>) instead.</p>
+<p>This call to <code>search_pv</code> sends our query to the “patents” endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API’s <a href="http://www.patentsview.org/api/query-language.html">query language</a> which uses JSON, though we could have used pure R functions (described in the <a href="https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd">writing queries vignette</a>) instead.</p>
 </div>
 <div id="fields" class="section level2">
 <h2>Fields</h2>

vignettes/patentsview.Rmd

@@ -38,7 +38,7 @@ search_pv(query = '{"_gte":{"patent_date":"2007-01-01"}}',
           endpoint = "patents")
 ```
 
-This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html), though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
+This call to `search_pv` sends our query to the "patents" endpoint. The PatentsView API has 7 different endpoints, corresponding to 7 different entity types. The 7 entity types include assignees, CPC subsections, inventors, locations, NBER subcategories, patents, and USPC main classes.<sup><a href="#fn1" id="ref1">1</a></sup> We filtered our results using the API's [query language](http://www.patentsview.org/api/query-language.html) which uses JSON, though we could have used pure R functions (described in the [writing queries vignette](https://github.com/crew102/patentsview/blob/master/vignettes/writing-queries.Rmd)) instead.
 
 ## Fields