Fix typo in troubleshooting-nodejs, adopters and malabi (#3263)

Co-authored-by: Severin Neumann <[email protected]>

content/en/blog/2021/malabi.md

@@ -7,7 +7,7 @@ canonical_url: https://medium.com/opentelemetry/trace-based-testing-with-opentel
 cSpell:ignore: Malabi
 ---
 
-This article introduces you to to Malabi, a new open source tool for trace-based
+This article introduces you to Malabi, a new open source tool for trace-based
 testing. For all the details, see the [original post][].
 
 [original post]: {{% param canonical_url %}}

content/en/blog/2022/troubleshooting-nodejs.md

@@ -268,7 +268,7 @@ are other exporters to choose from, and each one has a few configuration
 options. An error in one of these options will fail to export, which is silently
 ignored by default.
 
-A a few common configuration errors are covered in the following subsections.
+A few common configuration errors are covered in the following subsections.
 
 ### OTLP exporters
 

content/en/ecosystem/adopters.md

@@ -6,11 +6,11 @@ cSpell:ignore: Dapr Datenrettungsdienste Farfetch Globale Logicmonitor Logz Upli
 # All spelling entries must be on a single line
 ---
 
-OpenTelemetry's mission is to to enable effective observability for all its
+OpenTelemetry's mission is to enable effective observability for all its
 end-users. If you are thinking about adopting OpenTelemetry for your
 organization, you may be curious about other adoption journeys. The table below
 is a non-exhaustive list of
-[end-user organizations](https://community.cncf.io/end-user-community/) that
+[_end-user_ organizations](https://community.cncf.io/end-user-community/) that
 have adopted OpenTelemetry for
 [Observability](/docs/concepts/observability-primer/).