Fix typos (#9)

* fix typo

* correct product name

Author: katrinleinweber

content/crosswalk/_index.md

@@ -6,5 +6,5 @@ The codemeta crosswalk provides an explicit map between the metadata fields used
 
 ## Contribute!
 
-CodeMeta encourages submissions of additional vocabularies by making Pull Requests against the [full crosswalk table](https://github.com/codemeta/codemeta/tree/master/crosswalk.csv).  Feel free to propose corrections or extensions in the [codmeta issues tracker](https://github.com/codemeta/codemeta/issues).
+CodeMeta encourages submissions of additional vocabularies by making Pull Requests against the [full crosswalk table](https://github.com/codemeta/codemeta/tree/master/crosswalk.csv).  Feel free to propose corrections or extensions in the [codemeta issues tracker](https://github.com/codemeta/codemeta/issues).
 

content/terms.Rmd

@@ -38,4 +38,4 @@ knitr::kable("html", table.attr="class=\"table table-striped\"")
 ```
 
 
-Please suggest additional terms or adjustments to this representation in the [codmeta issues](https://github.com/codemeta/codemeta/issues)
+Please suggest additional terms or adjustments to this representation in the [codemeta issues](https://github.com/codemeta/codemeta/issues)

content/user-guide.md

@@ -54,7 +54,7 @@ Every CodeMeta document must refer to the context file *codemeta.jsonld*, for ex
 
 
 The context file may be modified and updated in the future, if new JSON properties are added or existing ones modified.
-The CodeMeta github repository defines tags to allow specific versions of a file to be referenced, and assigns 
+The CodeMeta GitHub repository defines tags to allow specific versions of a file to be referenced, and assigns 
 *digital object identifiers*, or DOIs, to each release tag. Please use the [appropriate release](https://github.com/codemeta/codemeta/releases) of the CodeMeta schema in order to refer to the
 appropriate context file, e.g.