Some fixes for concept pages (#1429)

content/en/docs/concepts/_index.md

@@ -7,6 +7,6 @@ aliases: [/about, /docs/concepts/overview, /otel]
 weight: 1
 ---
 
-The Concepts section helps you learn more about the data sources and components
+The concepts section helps you learn more about the data sources and components
 of the OpenTelemetry project in order to obtain a deeper understanding of how
 OpenTelemetry works.

content/en/docs/concepts/data-collection.md

@@ -22,7 +22,7 @@ The OpenTelemetry Collector provides a single binary and two deployment methods:
 - **Agent:** A Collector instance running with the application or on the same
   host as the application (e.g. binary, sidecar, or daemonset).
 - **Gateway:** One or more Collector instances running as a standalone service
-  (e.g. container or deployment) typically per cluster, datacenter or region.
+  (e.g. container or deployment) typically per cluster, data center or region.
 
 For information on how to use the Collector see the
 [getting started documentation](/docs/collector/getting-started).

content/en/docs/concepts/glossary.md

@@ -175,7 +175,7 @@ A name/value pair added to telemetry data. OpenTelemetry calls this
 ### **Metric**
 
 Records a data point, either raw measurements or predefined aggregation, as
-timeseries with [`Metadata`](#metadata). See [more][metric].
+time series with [`Metadata`](#metadata). See [more][metric].
 
 ### **OC**
 
@@ -277,7 +277,7 @@ scalability. A [`Service`](#service) may be deployed in multiple locations.
 
 ### **Signal**
 
-One of [`Traces`](#trace), [`Metrics`](#metric) or [`Logs`](#log). More on 
+One of [`Traces`](#trace), [`Metrics`](#metric) or [`Logs`](#log). More on
 Signals [here][signals].
 
 ### **Span**
@@ -328,31 +328,31 @@ on web pages when requested. See [more][zpages].
 
 ### Traces
 
-##### **[Trace API Terminology](/docs/reference/specification/trace/api)**
+#### **[Trace API Terminology](/docs/reference/specification/trace/api)**
 
-##### **[Trace SDK Terminology](/docs/reference/specification/trace/sdk)**
+#### **[Trace SDK Terminology](/docs/reference/specification/trace/sdk)**
 
 ### Metrics
 
-##### **[Metric API Terminology](/docs/reference/specification/metrics/api#overview)**
+#### **[Metric API Terminology](/docs/reference/specification/metrics/api#overview)**
 
-##### **[Metric SDK Terminology](/docs/reference/specification/metrics#specifications)**
+#### **[Metric SDK Terminology](/docs/reference/specification/metrics#specifications)**
 
 ### Logs
 
-##### **[Trace Context Fields](/docs/reference/specification/logs/data-model#trace-context-fields)**
+#### **[Trace Context Fields](/docs/reference/specification/logs/data-model#trace-context-fields)**
 
-##### **[Severity Fields](/docs/reference/specification/logs/data-model#severity-fields)**
+#### **[Severity Fields](/docs/reference/specification/logs/data-model#severity-fields)**
 
-##### **[Log Record Fields](/docs/reference/specification/logs/data-model#log-and-event-record-definition)**
+#### **[Log Record Fields](/docs/reference/specification/logs/data-model#log-and-event-record-definition)**
 
 ### Semantic Conventions
 
-##### **[Resource Conventions](/docs/reference/specification/resource/semantic_conventions)**
+#### **[Resource Conventions](/docs/reference/specification/resource/semantic_conventions)**
 
-##### **[Span Conventions](/docs/reference/specification/trace/semantic_conventions)**
+#### **[Span Conventions](/docs/reference/specification/trace/semantic_conventions)**
 
-##### **[Metric Conventions](/docs/reference/specification/metrics/semantic_conventions)**
+#### **[Metric Conventions](/docs/reference/specification/metrics/semantic_conventions)**
 
 [baggage]: /docs/reference/specification/baggage/api/
 [attribute]: /docs/reference/specification/common/#attributes

content/en/docs/concepts/signals/logs.md

@@ -15,4 +15,4 @@ the change.
 
 > For more information, see the [logs specification][].
 
-[logs specification]: /docs/reference/specification/overview/#log-signal
+[logs specification]: /docs/reference/specification/overview/#log-signal

content/en/docs/concepts/signals/metrics.md

@@ -49,4 +49,4 @@ metrics include:
 
 > For more information, see the [metrics specification][].
 
-[metrics specification]: /docs/reference/specification/overview/#metric-signal
+[metrics specification]: /docs/reference/specification/overview/#metric-signal

content/en/docs/concepts/signals/traces.md

@@ -81,7 +81,7 @@ Sample Trace:
     },
     "events": [
         {
-            "name": "Guten tag!",
+            "name": "Guten Tag!",
             "timestamp": "2022-04-29T18:52:58.114561Z",
             "attributes": {
                 "event_attributes": 1