Apply suggestions from code review

Co-authored-by: Kevin Menden <kevin.menden@live.com>

README.md

@@ -943,7 +943,7 @@ INFO     Installing cat/fastq
 INFO     Downloaded 3 files to ./modules/nf-core/software/cat/fastq
 ```
 
-You can pass the module name as a optional argument to `nf-core modules install` instead of using the cli prompt, eg: `nf-core modules install fastqc`.
+You can pass the module name as an optional argument to `nf-core modules install` instead of using the cli prompt, eg: `nf-core modules install fastqc`.
 
 There are four flags that you can use with this command:
 
@@ -972,7 +972,7 @@ INFO     Removing star/align
 INFO     Successfully removed star/align module
 ```
 
-You can pass the module name as a optional argument to `nf-core modules install` instead of using the cli prompt, eg: `nf-core modules remove fastqc`. To specify the pipeline directory, use `--dir <pipeline_dir>`.
+You can pass the module name as an optional argument to `nf-core modules install` instead of using the cli prompt, eg: `nf-core modules remove fastqc`. To specify the pipeline directory, use `--dir <pipeline_dir>`.
 
 ### Create a new module
 

nf_core/__main__.py

@@ -662,7 +662,7 @@ def bump_version(new_version, dir, nextflow):
     As well as the pipeline version, you can also change the required version of Nextflow.
     """
     try:
-        # Check if pipeline directory contain necessary files
+        # Check if pipeline directory contains necessary files
         nf_core.utils.is_pipeline_directory(dir)
 
         # Make a pipeline object and load config etc
@@ -698,7 +698,7 @@ def sync(dir, from_branch, pull_request, repository, username):
     the pipeline. It is run automatically for all pipelines when ever a
     new release of nf-core/tools (and the included template) is made.
     """
-    # Check if pipeline directory contain necessary files
+    # Check if pipeline directory contains necessary files
     try:
         nf_core.utils.is_pipeline_directory(dir)
     except UserWarning: