Add cheat sheet tags for dynamic labels/types (#1117)

(Also fixes 2 minor errors)

Corresponding Cheat sheet PR:
neo4j/docs-cheat-sheet#202

modules/ROOT/pages/clauses/create.adoc

@@ -235,6 +235,7 @@ This is because a relationship can only have exactly one type.
 ----
 
 .Create nodes and relationships using dynamic node labels and relationship types
+// tag::clauses_create_dynamic_create[]
 [source, cypher]
 ----
 CREATE (greta:$($nodeLabels) {name: 'Greta Gerwig'})
@@ -243,6 +244,7 @@ UNWIND $movies AS movieTitle
 CREATE (greta)-[rel:$($relType)]->(m:Movie {title: movieTitle})
 RETURN greta.name AS name, labels(greta) AS labels, type(rel) AS relType, collect(m.title) AS movies
 ----
+// end::clauses_create_dynamic_create[]
 
 .Result
 [role="queryresult",options="footer",cols="4*<m"]

modules/ROOT/pages/clauses/load-csv.adoc

@@ -309,7 +309,7 @@ It also mitigates the risk of Cypher injection.
 (For more information about Cypher injection, see link:https://neo4j.com/developer/kb/protecting-against-cypher-injection/[Neo4j Knowledge Base -> Protecting against Cypher injection]).
 
 .bands-with-headers.csv
-[source, csv, filename="artists-with-headers.csv"]
+[source, csv, filename="bands-with-headers.csv"]
 ----
 Id,Label,Name
 1,Band,The Beatles
@@ -319,12 +319,14 @@ Id,Label,Name
 ----
 
 .Query
-[source, cypher, role=test-skip]
+// tag::clauses_load_csv_dynamic_columns[]
+[source, cypher]
 ----
 LOAD CSV WITH HEADERS FROM 'file:///bands-with-headers.csv' AS line
 MERGE (n:$(line.Label) {name: line.Name})
 RETURN n AS bandNodes
 ----
+// end::clauses_load_csv_dynamic_columns[]
 
 .Result
 [role="queryresult",options="header,footer",cols="1*<m"]

modules/ROOT/pages/clauses/match.adoc

@@ -546,7 +546,7 @@ RETURN directors
 1+d|Rows: 2
 |===
 
-.Match nodes dynamically using the `any()` function
+.Match nodes dynamically using `any()`
 [source, cypher]
 ----
 MATCH (n:$any(["Movie", "Actor"]))
@@ -577,11 +577,14 @@ RETURN n AS nodes
 ----
 
 .Match nodes dynamically using a parameter
+// tag::clauses_match_dynamic_match_parameter[]
 [source, cypher]
 ----
 MATCH (movie:$($label))
 RETURN movie.title AS movieTitle
 ----
+// end::clauses_match_dynamic_match_parameter[]
+
 
 .Result
 [role="queryresult",options="header,footer",cols="1*<m"]
@@ -596,13 +599,16 @@ RETURN movie.title AS movieTitle
 
 
 .Match relationships dynamically using a variable
+// tag::clauses_match_dynamic_match_variable[]
 [source, cypher]
 ----
 CALL db.relationshipTypes()
 YIELD relationshipType
 MATCH ()-[r:$(relationshipType)]->()
 RETURN relationshipType, count(r) AS relationshipCount
 ----
+// end::clauses_match_dynamic_match_variable[]
+
 
 .Result
 [role="queryresult",options="header,footer",cols="2*<m"]

modules/ROOT/pages/clauses/merge.adoc

@@ -718,6 +718,7 @@ This is because the xref:planning-and-tuning/execution-plans.adoc[Cypher planner
 ----
 
 .Merge nodes and relationships using dynamic node labels and relationship types
+// tag::clauses_merge_dynamic_merge[]
 [source, cypher]
 ----
 MERGE (greta:$($nodeLabels) {name: 'Greta Gerwig'})
@@ -726,6 +727,7 @@ UNWIND $movies AS movieTitle
 MERGE (greta)-[rel:$($relType)]->(m:Movie {title: movieTitle})
 RETURN greta.name AS name, labels(greta) AS labels, type(rel) AS relType, collect(m.title) AS movies
 ----
+// end::clauses_merge_dynamic_merge[]
 
 .Result
 [role="queryresult",options="footer",cols="3*<m"]