Fix spelling mistakes in zipkin and apache inputs (#3741)

plugins/inputs/apache/README.md

@@ -2,7 +2,7 @@
 
 The Apache plugin collects server performance information using the [`mod_status`](https://httpd.apache.org/docs/2.4/mod/mod_status.html) module of the [Apache HTTP Server](https://httpd.apache.org/).
 
-Typically, the `mod_status` module is configured to expose a page at the `/server-status?auto` location of the Apache server.  The [ExtendedStatus](https://httpd.apache.org/docs/2.4/mod/core.html#extendedstatus) option must be enabled in order to collect all available fields.  For information about how to configure your server reference the [module documenation](https://httpd.apache.org/docs/2.4/mod/mod_status.html#enable).
+Typically, the `mod_status` module is configured to expose a page at the `/server-status?auto` location of the Apache server.  The [ExtendedStatus](https://httpd.apache.org/docs/2.4/mod/core.html#extendedstatus) option must be enabled in order to collect all available fields.  For information about how to configure your server reference the [module documentation](https://httpd.apache.org/docs/2.4/mod/mod_status.html#enable).
 
 ### Configuration:
 

plugins/inputs/zipkin/README.md

@@ -84,7 +84,7 @@ SELECT max("duration_ns") FROM "zipkin" WHERE "service_name" = 'my_service' AND
 
 ### Recommended InfluxDB setup
 
-This test will create high cardinality data so we reccomend using the [tsi influxDB engine](https://www.influxdata.com/path-1-billion-time-series-influxdb-high-cardinality-indexing-ready-testing/).
+This test will create high cardinality data so we recommend using the [tsi influxDB engine](https://www.influxdata.com/path-1-billion-time-series-influxdb-high-cardinality-indexing-ready-testing/).
 #### How To Set Up InfluxDB For Work With Zipkin
 
   ##### Steps